Shinbone,
Something to consider. My wife shoots a TC Encore 25-06 with a SIMS recoil pad on it....no issues at all. Matter of fact, she shot her brothers 300 last year thinking it was her dads 25-06 (both browning ABolts, same scope), until she pulled the trigger and it 'kicked' the snot out of her. I saw the video.....however, with the SIMS, recoil of either of these calibers should not be an issue....hope that helps.

skywalker