Re: Barrel length issue - Rifle Shooter Mag
Barrel length and velocity isnt always what it seems. Example in my 308s I get 20 FPS difference per inch. I have a 24" and a 26" barrel, 20 FPS is only safe velocity difference. Now I shoot the 26" er with a 175 at 2750 FPS, accuratly [img]images/icons/smile.gif[/img] , The 24" er is capable of 2700 FPS safley, the flip side is with the 2" shorter the muzzle pressure and blast is increased to the point it smacks the crap out of the bullet as it leaves the muzzle and wont shoot a group under 1"-1.5" I then have to reduce the loads to 2550 to acheive the same .250 groups I get from the 26"er. A muzzle brake solves this problem, but then that just adds 2"more and I might as well have it in barrel vs a brake [img]images/icons/shocked.gif[/img]
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.