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Hunting
Long Range Hunting & Shooting
Do muzzlebrakes impact group size?
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<blockquote data-quote="J E Custom" data-source="post: 1486539" data-attributes="member: 2736"><p>It doesn't pass the bullet, the bullet is long gone before the gas escapes the brake. the reason is that the pressure is falling and bullet speed is increasing until it exits the barrel.</p><p></p><p>the reason the gas exits the brake with the bullet gone is simply differential pressure. The pressure inside the brake is somewhere around 15,000 PSI to 18,000 PSI and the atmosphere it no more than 14 psi average so the high pressure gas looks for the quickest way out with the least resistance. The bore diameter in the exit of the brake is much smaller than the port volume so it allows more of the gas to exit the ports. Best size for the exit bore of the brake is .020 thousandths larger than the bore. Best size for the ports is determined buy the load and the amount of gas produced.</p><p></p><p>The larger the exit hole in the brake, the less efficient the brake is because it allows more gas to escape out the front And more backward thrust is produced. </p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1486539, member: 2736"] It doesn't pass the bullet, the bullet is long gone before the gas escapes the brake. the reason is that the pressure is falling and bullet speed is increasing until it exits the barrel. the reason the gas exits the brake with the bullet gone is simply differential pressure. The pressure inside the brake is somewhere around 15,000 PSI to 18,000 PSI and the atmosphere it no more than 14 psi average so the high pressure gas looks for the quickest way out with the least resistance. The bore diameter in the exit of the brake is much smaller than the port volume so it allows more of the gas to exit the ports. Best size for the exit bore of the brake is .020 thousandths larger than the bore. Best size for the ports is determined buy the load and the amount of gas produced. The larger the exit hole in the brake, the less efficient the brake is because it allows more gas to escape out the front And more backward thrust is produced. J E CUSTOM [/QUOTE]
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Do muzzlebrakes impact group size?
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