I built a 7x57AI on a LA and had a 22 in Douglas XX barrel installed. I get that extra omph that I couldn't get from a 7x57. I have a Jewell set at 1.75lbs and a 3-12x42 Schmidt and Bender Klassic on top w/a #4 reticle. It has been my primary gun for the last 20 years and I get 3050fps w/ the 140gr BT W/56.0gr of RL19. You can take a little off of your bolt stop and take a smidge off of your action opening on the botom to give you another .015-.020 but other than that you'll either have to live w/it, get a Montanna action, or build on a long action. I had mine throated to 3.05 and the action by no means swallows the cartridge. powdr
