Well, I suppose it depends on the particular shooter you wanted to "convert". I considered getting a pair for my '58 Remmies but gave up on the idea. I decided if I were going to cartridges then have a cartridge shooter; and if BP then have a BP shooter. Would be nice to shoot BP cartridges in the Remmies but for now it's shoot 'em as they come. I know, I know, I'll probably change my mind some day, but for now that's my story and I'm sticking to it.