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I'm looking for once fire GP11 brass, anyone know where to source it?
If you have some, let me know, I'll buy it.
Thanks!

20240226_103048.jpg
 
7.5x55 is much larger at the head than "standard" cartridges. A common case to reform was 284 Winchester, but it is scarce now, too.

Maybe one of the new cartridges would work, but I haven't checked.

Here's a diagram with metric measurements.


12.64 Millimeter = 0.4976 Inch head diameter

"Standard" cases are around 0.473 inches

Bruce

PS: The 7.62x54R Russian cartridge can be used, with a lot of work.

See post #2 here:

Ammunition sources:
 
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