I have no problem with my CZ 550 in 375 H&H feeding. Mine is of recent vintage and has the non-detachable magazine. It's not a push feed (like my Rem 700) so it wants to be fed from the magazine. Mine feeds flawlessly both during rapid fire where I'm cycling the action hard and fast, and normal operation. I believe it is a true CRF rifle. It's not a pre-64 Model 70 and if that's what you want, nothing else will do. It is a true magnum length mauser-variant action machined from forged steel (not investment cast), a nice trigger and accurate out of the box. It's pretty hard to argue with that in Safari calibers for under $1000.

Chuck