5.7×28 Subsonic Load Data A Comprehensive Guide

5.7×28 subsonic load information unlocks a world of precision and energy. This information delves into the intricacies of crafting efficient subsonic masses for this cartridge, from understanding the cartridge’s distinctive traits to deciding on the best powder and bullet mixtures. We’ll cowl the whole lot from the fundamentals to superior strategies, providing an entire useful resource for lovers and specialists alike.

This complete useful resource supplies an in depth evaluation of things impacting subsonic efficiency, corresponding to bullet weight, powder choice, and stress administration. It features a detailed desk of load information, categorized for simple reference and comparability, together with insights from varied producers. The information additional explores sensible concerns, together with barrel size affect and environmental results. It additionally addresses potential points and affords troubleshooting methods to make sure secure and constant outcomes.

Finally, this information goals to equip you with the information and instruments to attain optimum subsonic efficiency to your 5.7x28mm firearm.

Table of Contents

Understanding the Cartridge

5.7x28 subsonic load data

The 5.7x28mm cartridge, a comparatively compact and potent spherical, has carved a distinct segment in varied functions. Its design options enable for each accuracy and, importantly, a variety of potential subsonic configurations. This exploration delves into the specifics of this intriguing cartridge, from its origins to its sensible makes use of, and finally, how these components translate to subsonic efficiency.This cartridge’s dimensions, bullet weights, and customary sorts contribute to its versatility.

Its historical past and customary makes use of reveal its trajectory from specialised functions to wider acceptance. Crucially, the design traits that affect subsonic efficiency are important to understanding the sensible limits and benefits of this spherical. Variations in bullet building for subsonic masses, alongside different elements, are necessary for a complete understanding.

Cartridge Specs

The 5.7x28mm cartridge boasts a comparatively compact design, optimized for particular functions. Its dimensions, together with total size and cartridge diameter, contribute to its distinctive efficiency traits. Widespread bullet weights and kinds for this cartridge vary from lighter, sooner projectiles to heavier, slower ones, designed for various efficiency wants. The cartridge’s case design and primer are particularly tailor-made to accommodate these various bullet configurations.

  • Cartridge Dimensions: The 5.7x28mm cartridge has a case size and diameter particularly designed for the bullet profiles typically utilized. These dimensions affect velocity and muzzle power when fired from completely different firearm platforms. Particular dimensions differ barely relying on the producer.
  • Bullet Weights and Sorts: A spread of bullet weights are generally used with the 5.7x28mm cartridge, from gentle and quick to heavier, subsonic choices. This selection permits completely different efficiency traits for varied capturing functions.

Historic Context and Functions

The 5.7x28mm cartridge emerged from the necessity for a smaller, lighter, and more practical self-defense spherical. Its historical past reveals a growth path centered on sensible functions in each navy and regulation enforcement contexts. Its distinctive mixture of energy and portability has led to its widespread use.

  • Historic Improvement: The 5.7x28mm cartridge developed from early designs and has seen refinement over time. These refinements, from preliminary prototypes to fashionable manufacturing processes, contribute to the cartridge’s adaptability.
  • Widespread Makes use of: The cartridge is utilized in regulation enforcement and by navy forces, typically in particular conditions requiring managed stopping energy and decreased noise ranges.

Design Traits for Subsonic Efficiency

Key design elements of the 5.7x28mm cartridge affect its subsonic capabilities. These traits, together with the bullet profile and the propellant kind, are important in figuring out the subsonic efficiency.

  • Bullet Design: Bullet design performs a vital function in subsonic efficiency. Heavier bullets with particular shapes, or with a hollow-point building, improve subsonic capabilities.
  • Propellant Kind: The kind of propellant used within the cartridge is significant. Sure propellants, designed to supply a slower burning fee, are important for reaching subsonic velocities.

Variations in Bullet Development for Subsonic Hundreds

Variations in bullet building are a key part of subsonic masses. Particular bullet designs, corresponding to these with bigger or heavier profiles, are designed to ship desired efficiency in subsonic functions.

  • Kinds of Subsonic Bullets: Subsonic bullets typically function a heavier design or a distinct form in comparison with supersonic bullets. The added mass contributes to a extra managed and constant trajectory at subsonic velocities. Particular designs optimize this efficiency for the specified traits of the spherical.

Subsonic Load Concerns

Reaching subsonic velocities with the 5.7x28mm cartridge opens up an enchanting world of prospects, notably by way of suppressed or silencer-equipped functions. This distinctive method requires cautious consideration of bullet traits and loading strategies to make sure optimum efficiency and security. The secret’s discovering the proper steadiness between decreased noise, elevated vary, and constant accuracy.

Components Influencing Subsonic Bullet Choice

A number of elements play a vital function in selecting the best subsonic bullet for the 5.7x28mm cartridge. Bullet design, weight, and form are paramount. The aim is to take care of stability and accuracy whereas minimizing the required propellant load for subsonic velocities. Materials properties of the bullet additionally come into play.

Bullet Weight and Form for Subsonic Efficiency

Bullet weight is a important think about reaching subsonic velocities. Heavier bullets, inside sensible limits, require much less propellant to succeed in subsonic speeds. Nonetheless, extreme weight can negatively affect ballistic efficiency and accuracy. The form of the bullet is equally necessary. Aerodynamically environment friendly designs are essential for sustaining stability at these decrease velocities, particularly when coupled with greater ballistic coefficients.

The interaction of weight, form, and the cartridge’s dimensions defines the optimum projectile traits.

Comparability of Subsonic Bullet Efficiency

Totally different subsonic bullets exhibit various efficiency traits. These variations stem from variations of their weight, form, and building. Some bullets might supply superior accuracy, whereas others excel by way of penetration or enlargement. Choosing the proper bullet includes cautious consideration of those trade-offs to greatest meet the supposed use case. Comparative information tables will be helpful for making knowledgeable choices.

Strategies for Reaching Subsonic Velocity

Reaching subsonic velocities within the 5.7x28mm cartridge necessitates a particular method to loading. The quantity of propellant used is important; a fastidiously measured quantity is crucial to attain the specified velocity. Utilizing a subsonic powder, tailor-made for decreased stress, is significant. The mixture of propellant kind, weight, and bullet design is essential for sustaining stability and accuracy.

Experimentation and exact loading strategies are key to reaching the specified outcomes.

Moreover, exact powder cost measurement is crucial to attain the goal subsonic velocity. Utilizing specialised powder measures and correct loading procedures are very important for making certain consistency. Correct case preparation and resizing are necessary for making certain a constant start line.

Powder Choice and Burn Fee

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Choosing the right powder is essential for subsonic 5.7x28mm masses. It isn’t nearly getting the bullet shifting slowly; accuracy and dependable efficiency are equally necessary. Understanding powder burn fee and its results on velocity and accuracy is essential to crafting efficient and secure subsonic rounds. This part delves into the important concerns when deciding on the suitable powder for this software.The best powder kind for a subsonic load have to be fastidiously chosen.

The first issue is its burn fee, which immediately impacts the bullet’s velocity and accuracy. Totally different powders burn at various speeds, influencing the stress curve and finally, the bullet’s trajectory. The slower burn fee is usually most popular for subsonic functions.

Powder Sorts for Subsonic Hundreds

Numerous powder sorts are appropriate for subsonic masses within the 5.7x28mm. The only option depends upon the specified efficiency traits, corresponding to velocity and accuracy. Concerns embody the powder’s sensitivity to variations in temperature and humidity, in addition to its tendency to provide stress spikes. These elements are very important for constant and secure operation.

  • Smokeless Powders: Smokeless powders are the frequent alternative for subsonic masses attributable to their exact management over the burn fee and comparatively clear operation. They provide a wider vary of burn charges, permitting for fine-tuning of the load’s efficiency. Some frequent smokeless powders appropriate for subsonic masses embody these with a slow-burning nature, designed for low-velocity functions.

  • Particular Subsonic Powders: Specialised subsonic powders are sometimes engineered to excel in low-velocity functions. These powders are meticulously formulated for clean and constant burning at decreased velocities. They’re designed to reduce stress fluctuations and guarantee dependable efficiency. Cautious consideration of the particular powder’s traits is required to make sure one of the best outcomes.

Significance of Burn Fee

The burn fee of the powder immediately impacts the rate and accuracy of the projectile. A slow-burning powder produces a extra managed stress rise, contributing to improved accuracy and a decreased probability of stress spikes. This managed enlargement is essential for constant efficiency. A sooner burn fee would possibly lead to a better velocity, however doubtlessly on the expense of accuracy attributable to inconsistent stress.

Discovering the best steadiness is crucial.

Evaluating Powder Efficiency

Totally different powders exhibit varied efficiency traits in subsonic masses. Components like particular power, burn fee, and stress curve all play a task in figuring out the general efficiency. Consideration of those elements permits for knowledgeable decisions that maximize efficiency and reduce dangers.

Powder Kind Burn Fee Velocity Accuracy Notes
Instance Powder A Sluggish ~1000 fps Wonderful Recognized for clean, constant efficiency.
Instance Powder B Reasonable ~1100 fps Good Supplies a steadiness between velocity and accuracy.
Instance Powder C Quick ~1200 fps Honest Greater velocity, however doubtlessly much less correct.

Components Influencing Powder Choice

A number of elements affect the number of a particular powder kind for a subsonic 5.7x28mm load. These embody the specified velocity, the kind of bullet getting used, and the general efficiency necessities. Cautious consideration of those components is significant for optimum efficiency.

  • Desired Velocity: The specified velocity considerably impacts the powder alternative. Slower velocities require powders with a considerably slower burn fee. A slower burn fee is a elementary requirement.
  • Bullet Kind: The precise traits of the bullet affect the powder alternative. The bullet’s weight, form, and building all contribute to the general efficiency. Compatibility between the bullet and powder is essential.
  • Efficiency Necessities: The specified accuracy, consistency, and total efficiency of the load immediately have an effect on the powder choice. Particular efficiency targets ought to information the selection.

Stress and Security Concerns

5.7x28 subsonic load data

Navigating the world of subsonic ammunition requires a eager understanding of stress dynamics. Correct stress administration is paramount for secure dealing with and efficient efficiency. This part delves into the important relationship between stress, security, and correct load information for the 5.7x28mm cartridge.

Stress Comparability: Subsonic vs. Supersonic

A key distinction between subsonic and supersonic masses lies within the stress generated throughout firing. Subsonic masses, designed to function beneath the pace of sound, typically produce decrease peak pressures in comparison with their supersonic counterparts. Understanding this distinction is essential for secure loading and dealing with practices. This distinction in stress ranges permits for changes within the total loading course of, making certain that the cartridge is appropriately ready to keep away from potential questions of safety.

Load Kind Typical Peak Stress (psi)
Subsonic Round 40,000 – 50,000 psi
Supersonic Round 55,000 – 65,000 psi

Observe: These are approximate values and might differ based mostly on particular load information and ammunition parts. At all times seek the advice of the producer’s information for exact figures.

Significance of Stress Administration

Stress administration is prime to making sure the protection of each the shooter and surrounding setting. Excessive pressures could cause catastrophic failures within the firearm, resulting in potential damage or injury. Exactly managing the stress exerted by the increasing propellant gases throughout the cartridge case is important for making certain the integrity of the firearm and the shooter’s security.

Significance of Correct Load Knowledge

Correct load information is crucial for secure and efficient subsonic loading. Utilizing information outdoors the prescribed parameters can result in harmful stress spikes. A small variance in powder cost, bullet weight, or primer kind can considerably have an effect on the stress generated throughout firing. Following the precise directions Artikeld in respected load information for the 5.7x28mm cartridge is paramount to avoiding mishaps and making certain a secure capturing expertise.

Bear in mind, exact information is the cornerstone of secure and dependable subsonic ammunition loading.

Security Measures for Dealing with Subsonic Ammunition

Dealing with subsonic ammunition, like every other ammunition, necessitates a cautious method. These measures needs to be diligently adopted to forestall accidents.

  • At all times examine the ammunition for any indicators of injury or defects earlier than loading.
  • Use applicable security tools, together with eye and ear safety.
  • Make sure the firearm is unloaded and the motion is open earlier than dealing with ammunition.
  • Observe correct dealing with procedures for reloading the firearm. By no means rush or minimize corners through the course of.
  • Retailer ammunition in a cool, dry, and safe location, away from potential hazards.
  • Familiarize your self with native and nationwide laws for ammunition storage and dealing with.

By meticulously adhering to those security precautions, you may considerably scale back the chance of accidents and guarantee a secure and pleasant capturing expertise.

Load Knowledge Group

Taming the beast of 5.7x28mm subsonic masses includes meticulous group. Exact load information is essential for secure and efficient capturing. Figuring out easy methods to correctly set up this info ensures you may rapidly discover the best load to your particular wants, be it a searching journey or a variety session.

A well-structured load information desk empowers you to match completely different powders, bullet weights, and velocities at a look. This structured method eliminates guesswork and enhances your capturing expertise. That is the place the magic occurs.

Subsonic Load Knowledge Desk

A well-organized desk is essential to successfully evaluating subsonic masses for the 5.7x28mm cartridge. This desk format permits for fast and simple identification of various load parts and efficiency traits. By offering a complete overview, you may readily examine completely different producers’ information.

Powder Kind Quantity (Grains) Bullet Weight (Grains) Velocity (fps)
Correct Arms #1 20 120 1050
Correct Arms #2 22 120 1100
Hornady 777 18 125 1000
Hodgdon H4198 20 115 1075
IMR SR4750 19 125 1125

Comparative Load Knowledge Desk

Evaluating completely different subsonic masses permits you to choose probably the most appropriate load to your particular wants. Totally different producers might use varied powder sorts, bullet weights, and portions to attain subsonic velocities. A comparative desk supplies an easy option to determine optimum efficiency traits.

Producer Powder Kind Quantity (Grains) Bullet Weight (Grains) Velocity (fps) Notes
Correct Arms AA #1 20 120 1050 Dependable, constant efficiency.
Hornady 777 18 125 1000 Recognized for accuracy and dependable velocity.
Hodgdon H4198 20 115 1075 Wonderful velocity and accuracy, barely dearer powder.
IMR SR4750 19 125 1125 Good all-around efficiency; doubtlessly extra delicate to load consistency.

These tables signify pattern information. At all times check with the producer’s particular load information to your chosen ammunition and powder. Security is paramount. Correct dealing with and adherence to producer directions are important.

Sensible Concerns: 5.7×28 Subsonic Load Knowledge

Subsonic masses, whereas providing distinctive benefits by way of security and decreased noise, demand a nuanced understanding of sensible elements. These elements, from barrel size to environmental situations, can considerably affect the efficiency and reliability of your 5.7x28mm subsonic masses. A complete method is essential to maximizing the potential of this thrilling cartridge.

Impression of Barrel Size on Subsonic Efficiency

Barrel size performs a important function in subsonic efficiency, impacting each velocity and accuracy. Longer barrels enable for a extra full burn of the powder, doubtlessly resulting in greater velocities and larger accuracy. Shorter barrels, whereas extra handy, would possibly lead to decrease velocities and decreased accuracy attributable to incomplete combustion and larger stress fluctuations. It is because the projectile spends much less time within the barrel, leading to much less alternative for the powder to totally ignite and propel the bullet to its most potential velocity.

Function of Temperature and Humidity on Subsonic Load Efficiency

Temperature and humidity considerably have an effect on the efficiency of subsonic masses. Adjustments in temperature alter the density of the propellant, affecting its burn fee. Equally, humidity can affect the efficiency of the propellant and the projectile, doubtlessly impacting accuracy and consistency. Hotter temperatures usually result in sooner burn charges and decreased accuracy, whereas cooler temperatures typically lead to slower burn charges.

Comparability of Accuracy and Consistency of Totally different Subsonic Hundreds

Totally different subsonic masses exhibit various levels of accuracy and consistency. Components like projectile design, powder kind, and manufacturing tolerances can considerably affect the dispersion of photographs. Some masses are engineered for greater accuracy, whereas others is perhaps extra centered on consistency in velocity, even at the price of accuracy. Rigorous testing and evaluation of various masses is essential for figuring out which performs greatest to your wants.

Correct measurements and information assortment are key to figuring out one of the best load to your firearm and supposed use.

Components Affecting the Efficiency of Subsonic Hundreds

Quite a few elements can affect the efficiency of subsonic masses, starting from the standard of the parts to the particular firearm getting used. Components like projectile weight, form, and building all contribute to the general efficiency. Variations within the manufacturing processes of the powder and bullet can introduce refined, however necessary, variations in velocity and accuracy. Correct dealing with and storage of ammunition, in addition to the particular setting during which the firearm is used, can all affect the result.

Load Knowledge Sources and Reliability

Discovering dependable load information to your 5.7×28 subsonic masses is essential for secure and efficient capturing. It is like selecting the best recipe for a dish – the improper substances result in catastrophe, identical to the improper load information can result in harmful stress spikes or inconsistent efficiency. Figuring out the place to search out reliable info and easy methods to assess its reliability is essential.Understanding the sources of load information and their reliability is paramount to making sure secure and efficient capturing.

Totally different sources could have completely different ranges of credibility and experience. This part particulars easy methods to navigate the world of load information, from figuring out respected sources to critically evaluating the knowledge introduced.

Respected Sources for Load Knowledge

Correct load information is not one thing you bump into; it is one thing you diligently hunt down. Acknowledged ammunition producers, revered reloading manuals, and skilled firearms lovers are all wonderful assets. These sources typically have intensive testing and information evaluation behind them. Search for information supported by scientific strategies and verifiable outcomes.

Evaluating Load Knowledge Reliability

Assessing the reliability of load information requires a eager eye and a discerning thoughts. Think about the supply’s popularity, the methodology used to assemble the information, and the consistency of the outcomes. Does the supply cite particular testing procedures? Are there any inconsistencies or discrepancies? Search for load information that’s supported by a number of sources or experiments.

Knowledge from a single supply, particularly one with a questionable historical past, needs to be handled with excessive warning. Moreover, search for information units that present an inexpensive vary of variations. A knowledge set that reveals extraordinarily tight groupings of outcomes ought to increase a purple flag.

Verifying Knowledge from Totally different Sources

When completely different sources present load information, at all times confirm the knowledge. If a number of dependable sources agree on a selected load, it will increase the chance of its accuracy. If a number of sources present important discrepancies, it signifies the necessity for additional investigation and potential re-evaluation. Do not hesitate to succeed in out to specialists or skilled reloaders for his or her insights. Their experiences and observations can typically supply helpful views.

Understanding Knowledge and Limitations

Load information just isn’t a crystal ball. It represents a variety of potential outcomes, not assured outcomes. Every firearm, bullet, and powder mixture will react barely in a different way, resulting in minor variances in efficiency. Actual-world situations, like temperature fluctuations, may also have an effect on the outcomes. At all times train warning and regulate the load information based mostly in your particular state of affairs.

Perceive that load information is an approximation, and your outcomes might differ. By no means push the boundaries of the information, and at all times prioritize security. Do not forget that a slight deviation from the load information may not be a catastrophe, however an enormous deviation may trigger severe issues.

Troubleshooting and Drawback Fixing

Unveiling the secrets and techniques to clean subsonic capturing, we delve into the potential pitfalls and sensible options. Understanding why issues may not go as deliberate is essential for any shooter, particularly when coping with the nuances of subsonic masses. This part will present a roadmap for figuring out and resolving points, enabling you to attain constant and dependable outcomes.Subsonic masses, whereas providing benefits like elevated vary and decreased recoil, can generally current distinctive challenges.

These challenges typically stem from the particular traits of subsonic ammunition, corresponding to decreased velocity and altered ballistic habits. Troubleshooting successfully includes recognizing the potential causes and making use of applicable methods to diagnose and repair the problems.

Potential Issues and Causes of Inconsistent Efficiency

Subsonic masses, attributable to their low velocities, will be extra delicate to environmental situations and variations in ammunition manufacturing. A standard drawback is inconsistent accuracy. This may stem from variations in powder cost density, bullet seating depth, and even slight variations within the primer’s ignition. Environmental elements like humidity and temperature may also play a big function, impacting the bullet’s trajectory and total efficiency.

Methods to Diagnose and Repair Issues

A methodical method is essential to diagnosing subsonic load points. First, meticulously examine the ammunition for any seen defects. Subsequent, consider the general loading process to make sure constant software of the powder cost, and correct seating of the bullet. If potential, carry out an intensive examine in your firearm’s situation, making certain it is clear and correctly functioning. Lastly, think about exterior elements, corresponding to temperature and humidity, which may have an effect on the ballistic traits of the subsonic load.

Structured Method to Determine and Deal with Subsonic Load Points, 5.7×28 subsonic load information

A scientific method to troubleshooting will enhance the chance of discovering the basis trigger.

  • Visible Inspection: Study the ammunition for any bodily defects. Search for indicators of injury or inconsistencies within the bullet or casing. This preliminary step can determine manufacturing defects or dealing with points.
  • Loading Process Evaluate: Rigorously analyze the loading course of, paying shut consideration to every step. Be sure that the powder cost is persistently measured and that the bullet is seated to the right depth. Consistency within the loading process is significant for dependable efficiency.
  • Firearm Performance Examine: Totally examine the firearm for cleanliness and correct functioning. Be sure that the motion cycles easily and that there are not any obstructions stopping correct firing. This may rule out mechanical points throughout the firearm itself.
  • Environmental Concerns: Consider the environmental situations, corresponding to temperature and humidity, to find out if they’re contributing to the efficiency inconsistencies. Adjustments in atmospheric stress may also have an effect on the bullet’s flight. Understanding these elements is essential to anticipating and correcting efficiency points.

Troubleshooting Examples

Think about these real-world examples:

  • Instance 1: Fluctuating Accuracy. If accuracy varies considerably, examine for constant powder prices and bullet seating. Additionally, think about potential environmental elements. The answer would possibly contain adjusting the loading process or compensating for environmental situations.
  • Instance 2: Lowered Velocity. If the rate of the subsonic load is persistently decrease than anticipated, evaluate the powder cost and bullet weight to verify these values are correct and constant. This might additionally point out an issue with the firearm or the ammunition itself.

By adopting a structured and methodical method, you may successfully diagnose and resolve subsonic load efficiency points, finally making certain dependable and constant capturing.

Superior Methods (Non-compulsory)

Effective-tuning subsonic masses within the 5.7x28mm cartridge opens a world of potential, pushing past primary load information. This part delves into specialised strategies, empowering you to tailor your masses for optimum efficiency and accuracy. Bear in mind, these strategies are superior and require cautious consideration of security protocols.Optimizing subsonic masses is a journey of discovery, very similar to crafting an ideal piece of music.

Every aspect, from seating depth to powder choice, contributes to the general concord of the load. Understanding these subtleties permits for a deeper understanding of the cartridge’s capabilities.

Seating Depth Optimization

Seating depth profoundly impacts bullet efficiency, particularly with subsonic masses. Correct seating depth ensures the bullet is correctly aligned throughout the cartridge, selling constant accuracy. Totally different seating depths may end up in diversified bullet seating, affecting bullet stability and accuracy. Experimentation is essential, however at all times keep secure working pressures.

  • Bullet Alignment: Correct bullet alignment throughout the cartridge ensures the bullet is completely centered. This contributes to constant accuracy and reduces the chance of erratic bullet flight.
  • Constant Bullet Seating: Cautious consideration to seating depth helps keep constant bullet seating. That is very important for reaching dependable accuracy and efficiency in a wide range of capturing situations.
  • Stress Concerns: At all times prioritize security. Various seating depth can affect chamber stress, so be conscious of the load information and security suggestions when adjusting this parameter.

Maximizing Accuracy with Subsonic Hundreds

Accuracy is paramount in any capturing endeavor, and subsonic masses demand meticulous consideration to element. Subsonic masses, attributable to their decrease velocities, will be notably delicate to slight variations within the capturing setting.

  • Environmental Components: Exterior elements, corresponding to temperature and humidity, can affect the efficiency of subsonic masses. Understanding these elements permits for extra exact load changes.
  • Rifle Stability: The steadiness of the rifle performs a important function. A well-maintained rifle with correct bedding and mounting ensures constant shot placement.
  • Shooter Method: Consistency within the shooter’s approach is essential for repeatable accuracy. Apply correct stance, set off management, and respiratory strategies.

Tailoring Hundreds to Particular Wants

Each shooter and each state of affairs calls for a singular method. Understanding easy methods to tailor masses to particular wants is essential for maximizing efficiency. This includes meticulous evaluation and adaptation to numerous capturing eventualities.

  • Goal Distance: Totally different goal distances necessitate completely different load traits. For longer ranges, optimizing for greater accuracy turns into paramount.
  • Goal Kind: The kind of goal being engaged will affect the number of the load. Think about the particular ballistic properties of the bullet when concentrating on particular recreation.
  • Environmental Situations: Environmental situations, corresponding to wind and temperature, needs to be factored into load growth and adjustment.

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