AH senior member
Hi y'all. Hope i'm posting in the right section. Got a brand new 550 chambered in 458wm that i took to the range for the first time Monday. Immediate woe's. As can be seen in the pics, it does not like 450g bullets. Jams every time. I know a lot of you guy's have extensive experience with CZs and hope someone has some suggestions. Try 500g bullets? Take it to a "smith"? Call CZ? Give up and buy a M70 (LOL). Any thots will be appreciated as i am at a loss on how to proceed. My 416Rigby operates flawlessly and it's a 550. Go figure.
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