I just put a new Mueller on my .22 and it's great, very clear, works fine--however, awhile back when shopping for a big bore scope, I called Mueller and asked them about their line standing up to the recoil and he was very honest and stated they only make one model that is built for big bores, all the rest are meant for the much milder calibers, .22's, .22 mags, Hornets etc so I went Bushnell and Leopold or Burris on the heavys---John