| 450_366 |
| (.400 member) |
| 13/03/10 06:54 AM |
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Re: What cartridge is this?
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there is another 577/500 31/4 BP magnum express iirc, maybe your cartridge was shot in such a rifle
The shoulder is a bit furher back on this one and steeper.
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I have seen more than one old gun that had a mis-shaped chamber. The 38-40 rifle/pistol cartridge comes to mind. They often blow the shoulder forward just like yours. I suggest this may be the correct cartrige identification, despite the mis-located shoulder.
Yeah, i start to think so also. At some time thay cleaned the chamber by removing some metal.
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The name of it's big brother is 577/500 Magnum 3 1/8"
I'm getting ready to load for one now. If you post some of the measurments I'll compare them to what I have for the fired brass.
Have you compared this one to the 577/450 for the OAL and shoulder placment? Possibly it is a 50 caliber wildcat?
The 577/450 has an even longer neck than the 577/500, so thats probably not it. Could be a wildcat but i was thinking it could have been an early german cartridge.