When it comes to ammunition, the smallest components can easily dictate the best results. If you’re aiming for the smallest groups at the longest ranges, you need to have three things: the skill to do it, a rifle capable of doing it, and the right ammo. Today, we are going to talk about ammo, specifically Match Grade ammo.
Match Grade Ammo: A Deep Dive
What makes a round Match Grade? That’s the topic of today’s article, and we are going to dive deep into Match Grade ammo. The main goal of this expensive, high-precision ammo is to offer you extreme consistency. Every little thing matters to get the best results possible. Manufacturers focus on achieving the lowest possible standard deviation in components.
The ultimate goal is to create a cartridge that has minimal variance.
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What Does Match Grade Mean?
Match Grade is more or less a marketing term by design. There isn’t an independent board of ballisticians issuing Match Grade requirements. There is no SAAMI for match grade. It’s purely manufacturer-designed. Companies are more or less using the term and staking their reputation on that term.
It’s honesty and a dedicated community that keep these companies in check. Precision shooters are a tight niche inside an already tight niche. If your ammo sucks, people will know, and know quickly. While it might be a marketing term, it’s one that few companies are willing to throw around without offering excellent results.
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Consistency Rules
Match Grade ammo will do a lot of things, and one of the most important is consistency and a low standard deviation. If you were to fire a batch of bog-standard FMJs through a rifle and record the velocity from shot to shot, you can figure out the standard deviation. It might be something like 20 or 40 feet per second.
When a cartridge is moving at over 2,500 feet per second, 30 to 40 FPS doesn’t seem all that bad. For most purposes, it’s not. However, if you’re trying to create maximum accuracy, you want a lower standard deviation. Those little jumps in velocity can produce inconsistency, and Match Grade ammo aims to minimize that inconsistency.
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With match-grade ammo, you’re likely to find a standard deviation of less than 10 FPS. Some will be as low as 5 FPS. That’s the type of deviation we want. It ensures consistency and helps with precision shooting.
The Component Breakdown
Each and every component of your cartridge matters. Let’s break down what match-grade ammo does to increase consistency through components.
Projectiles
Match-grade projectiles will use a high ballistic coefficient design. High BC designs are better at overcoming air resistance. This provides a flatter trajectory and less wind drift. Bullet manufacturers will often use boat-tail hollow point projectiles. The hollow point isn’t to provide expansion, but to ensure a perfectly centered core and a small, uniform hole to check concentricity.
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Another design factor is something called a VLD Profile or Very Low Drag Profile. These feature a long, slender secant or tangent ogive. They maximize aerodynamic efficiency and minimize pressure differences through the projectile’s body.
These bullets will be manufactured carefully. Special attention is paid to providing extreme consistency in jacket thickness, weight, and tip. This ensures the center of gravity is identical for every bullet.
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The Case
The brass case of your round matters as well. Match-grade ammo needs to be manufactured with meticulous control over the case wall thickness to ensure consistent internal volume. Inconsistent internal volume will cause changes in pressure.
These cases will be produced with consistent neck concentricity. Inconsistent neck concentricity will change the seating depth. The flash hole will be deburred and uniform for consistent ignition.
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Match-grade cases will often be reloadable. A heat treatment of the neck and shoulder area ensures uniform tension and better reloading durability.
The Powder
Powder charges won’t be some guy with a little cup eyeballing it. These will be, at the very least, hand-weighed for each cartridge. More than likely, modern systems will use a computer-controlled system. It’s critical that each case receives the exact same amount of powder.
The powders will be high-quality, temperature-stable powders to help reduce those standard deviations in different environments.
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Primers
To no one’s surprise, they will use high-quality primers that have uniform compound distribution. The case pocket to hold primers will be uniform to ensure consistent ignition force.
Getting Match Grade Potential
There’s a lot that goes into loading match-grade ammo. The entire purpose is to provide a consistent, precise round every time you pull the trigger. Cartridges are just one piece of the pie, but it’s a pretty big piece.
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