Ruger American in 6.5 Grendel

[Jmccracken]

Joe made that chart. Barrel loss per inch is not a linear function, since you have different curves based on the optimum length for the case capacity, working pressure, and projectile shape/weight with given bore volumes.

I did a science project focusing on barrel length with the 6.5 Grendel and found something like 18fps per inch difference between various 16" and 20" rifles shooting the same loads, so roughly 76fps mv difference between a 16" and a 20".

76fps isnt even worth worrying about either. Wont make much difference will it?