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Just curious. Has anyone ever tested the muzzle velocity of a semi-auto vs a bolt action, with the same length/twist barrel and identical ammo? Possibly a better test would be to test say...an FN FAL muzzle velocity with the gas port set to normal vs off. I wonder if cycling the action lowers the muzzle velocity.
Yes. A semi-auto is always going to be slightly slower than a comparable bolt gun.
Nope.
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turning off the gas port will increase your MV.
if it is enough to be statistically significant, I don't know.
Gas port setting has nothing to do with muzzle velocity, and if it did, it would be so miniscule an amount that it would be silly to care.
Your muzzle velocity in any weapon is only concerned with the amount of charge in the shell, and the length of the barrel. It would also be dependant on the weight of the bullet, but Im only assuming the testing would be using the exact same load combination every time.
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No.
The laws of physics says it will. How much, I have no idea. Just a guess is a few fps.
No it doesn't. He asked if putting the butt against the wall would increase the velocity. The answer is a simple "no".