Originally Posted by TwoTrax
Originally Posted by Mule Deer
Originally Posted by TwoTrax
Guarantee the loss is more than 25 fps per inch on this combo.


Why?


Because I have had 3 rifle barrels shortened, 2 inches, a 270, 308 and 338 mag. The 270 lost something like 70 fps, 308 was about 40, 338 mag was like 60.


Are those FPS figure per inch or total?