Remington may have had some problem with the Model 1894/1900 because along about 1903 or so they moved the sear pin about 1/8 of an inch closer to the hammer pin. I have guns with the pin way down in the corner and guns with it farther in and I haven't noticed any difference. Then about 1906 or so Remington went to firing pins seperate from the tumblers. Could it have been cheaper to make a seperate firing pin and thread a hole for a screw to keep it in place then to continue making them integral with the tumbler?!?
