I bought a 1892 rifle (not carbine) with a 24" octagon barrel last week at an estate sale. Today is the first time I had a chance to load some ammo for it.
Rifle made in 1904
Loads are 117 grain fn cast and lined with bens red.
13.5 grains of IMR 4227
Remington 6-1/2 primers
No crimp, I've been single loading the chamber.
Edit: forgot to mention I full length resized these.
Now for the problem. The primers are backing out after firing and metal is flowing back around the firing pin. This is never fired brass I pulled down from bp loaded ammo.
After seeing this I grabbed my 218 bee go/no go gauges and iirc they work for 32/20 and 25/20 as well. My bolt closes easily on the no go gauge.
So what say you?
Excessive pressure?
Excessive headspace?
Should not be full length resized?