.44 Magnum 250 grain Keith Type, side by side with a .41 Magnum 230 grain Keith Type. Which ones which?
Above: .41 Magnum 210 grain Gold Dot, 230 grain Keith Type handloads and the old Winchester 210 grain LSWC Police Load. It did about 900 fps from a 4" barrel and was considered an improvement over the 158 grain .38 Special LSWC and LRN, back in the early 1960s. Nowadays, my 210 grain Gold Dot load for example, is way more potent than any 10 MM load.