Gunsmithing on the lwrc barrel lengh vs,fps ?

cz777

Sergeant
Full Member
Minuteman
Mar 27, 2008
193
0
between 16'' and 20'' barrel length on the ave. different fps is 70 fps with 168 grain match loads . other tests by others the same thing shows up ...ok has anybody here done the same ? what can account for this ? besides cheating the tests?