My 7mm AM is basically a 7mm/338 LM AI, I've let 9 year old kids whack does a pretty fir piece with it under my instructions and supervision. I've killed a pile of deer at pretty long range and have never not saw the bullet impact through the scope. It does however weigh 14# it burns 105 gr of wc872 for a MV of 3575 fps with a 160.
RR