Is your 50B a .500 or .510" round Rost? and do they make a copper Barnes for it?
Those Barnes' at 2400 in my 450B really do a bang up job for some unknown reason, everyone knows .451" and only 245 grs isn't going to break any sec den records, and neither is 2400 fps.
Alexander arms barrel, IE Walther. Not the best in teh world. A bit more than MOA but its ok enough i guess.
Not sure on the bore size, but I shoot 275 Barnes X flying ashtrays in the 16 inch tube. If I carry it in AK I run a bigger bullet, and sometimes not even barnes, something more along the lines of FMJ type, forget which one on that as I have not taken it there in a while.
I expect performance wise there isn't any difference at all between the 450/458 and the 50. Don't see how there could be.
