Researcher, that's good info. I had no idea they changed the 1894 design during it's short production run. Semmer does not mention it in his book nor did I find it on the Remington website. BTW that website does have exploded views of the 1894 that are pretty cool. My 1900 is year 1906 so I suppose it has the firing pins. Could it be the firing pins are too long? The indentations on the primers were fairly deep. I used Federal target loads.