I know I' m not who you' re asking, but I did have a CZ550 .375H&H, and have one in .416Rigby...I absolutely love them, they feel absolutely great to me, let alone shoot great, that' s why I' ve stuck with them, they feel more like a heavy deer rifle, as opposed to being built like a tank. I' ve never used anything other than butt-stock recoil pads and PAST shoulder pads, and the recoil hasn' t been a problem (<---stock provides this), where other .416rig' s of mine have been NECESSARILY fitted with recoil dampening tubes. My only complaint is that I have troubles getting the folding leaf sights to actually match the ranges they say with my handloads, although when you mount a glass, that' s not an issue (although sometimes a glass and africa aren' t the best combination!)