The exact reason I have a .223ai No trimming is nice, and I am never one to complain about getting a tad more speed. I just wasn't sure how much the bump would yield in the .243
I just got a .243 that I have had for years up running again. I bought it several years ago, and put about 40 rounds through it and put it away to play with other goodies. I sort of rediscovered it in the safe the other day, and started thinking about going AI just for the hell of it.
