If you didn't, you should make a chamber cast and slug the bore. I'm curious how you measured the neck diameter, shoulder diameter and shoulder length without one. Anything is possible but that's a rather warm cartridge for a drilling of that vintage and is obviously a black powder firearm. The size of the firing pins alone just about negate such a cartridge as the 9.3 X 62R. Smokeless powder firing pins are much smaller than those for black powder cartridges and for good reason.


Last edited by sharps4590; 07/22/15 11:12 AM. Reason: Mike posted while I was typing
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