I helped a good friend of mine today sight in his newly purchased 1874 Cimmarron Sharps. He shot both Buffalo Arms 405grn BP .45-70 ammo and some of my 535 grn Postell BP loads, while I spotted for him. We got the rifle to shooting just a tad over 1 1/4" groups at 100 yards which indicate the rifle has some serious promise. Due to time constraints, we were unable to shoot at any longer distances.
One small problem we had, was occasionally the rim of the cartridge would slip past the extractor and then the block would not close. Easy remedy was to push the round back out with a cleaning rod. I have never encountered that problem before in any make of Sharps 1874 so was wondering what might be the cause. There did not appear to be any parts breakage or undue wear on the extractor. Other than that small problem the rifle shot extremely well and had no other problems.
Anyone encountered this problem before?
Thank you.