It’s a very good price and they are no longer made. They’re a well sought after action for building big bangers. The 458 WM has a bit of reputation for being a poor feeder in that action. The mag length is 3.8” long and a standard length 458WM does leave a lot of room in the mag.
I have one that was originally in 375H&H that I had converted to 458WM - I used a factory take-off barrel. It’s been a journey getting it to feed well. In the end the mag was blocked at the front to reduce the length. As mentioned, opening the chamber to 458Lott generally improves the feeding in the CZ550.
