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Deleted member 67409
Got a question about how barrel length effects bullet velocity and thus bullet expansion.
Most ammo manufacturers list their velocities using a specified test barrel length. In .308, this is around 24". For example, S&B lists a test barrel length of 23 1/2" for .308. The test barrel length is thus used to demonstrate velocities and bullet expansion. When you cut that 23 1/2" barrel down to 16", you're losing about 300fps.
.308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length « Daily Bulletin
My question is, how much does this 300fps loss affect bullet expansion? Is it worth shooting into ballistic gel? Is it worth shooting into ballistic gel regardless of the barrel length to test rifle bullet expansion for every hunting load, no matter what? I realize tons of guys go out and have no issues with that one box of Remington Core-Lokts every year, I just want to have a better understanding of rifle ballistics and how they impact expansion.
Most ammo manufacturers list their velocities using a specified test barrel length. In .308, this is around 24". For example, S&B lists a test barrel length of 23 1/2" for .308. The test barrel length is thus used to demonstrate velocities and bullet expansion. When you cut that 23 1/2" barrel down to 16", you're losing about 300fps.
.308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length « Daily Bulletin
My question is, how much does this 300fps loss affect bullet expansion? Is it worth shooting into ballistic gel? Is it worth shooting into ballistic gel regardless of the barrel length to test rifle bullet expansion for every hunting load, no matter what? I realize tons of guys go out and have no issues with that one box of Remington Core-Lokts every year, I just want to have a better understanding of rifle ballistics and how they impact expansion.