I have the XCR in 300UM. Shoot one before you buy one if you get the chance. If you are at all concerned about recoil, or don't shoot a thumper now, try one first. If not, you'll have it in your head that it is gonna hurt you, and the first time you shoot it will probably imprint in your memory....I was somewhat thrown off the second time I shot mine, as the first time I shot it we had been bench shooting some heavy guns first (416 Rigby, and 458 Win Mag). So in my mind it was a kitten, on par with my 264 mag....Surprise surprise, it has some recoil to it. Manageable recoil mind you, but it is there. For an idea, I'm not a small man - 200ish - and when I was shooting off the bench the other night I was crawled up on the stock. I normally shoot smaller guns with my left hand back on the stock underneath just in front of the sling swivel. When I touched 'er off, the back side of the pistol grip hit my still stationary left hand hard enough to bruise me....Being a slow learner, and not thinking that my form was off, and I did it again. Green web of thumb anyone?
But don't let this scare you off, these things are great! They speak with authority.