That is an excellent idea with the ejector! It could be marketed as a cheaper training alternative to a standard .38 Smith. Now what about the bullets? I'm thinking basically a larger version of the Companion bullets that are copper plated and a similar loading tool. The chambers would have to be chamfered for harder lead bullets to be seated easier, soft lead would cause excessive leading if smokeless powder were used. Lead round nosed bullets are good, at 1200 FPS in .22 caliber they penetrate well and mushroom nicely. I tried plating some NAA bullets in copper after removing the lube, I don't know if it's me but they seem to be more effective. I have also cut an X on the nose of the bullet with a sharp bowie knife, the .22's expand to almost twice their size. I'd hate to be shot with that, especially in .36 or .357 caliber. Of course a benefit of this is you could shoot lead balls propelled by a magnum primer in the basement or garage, that would be pretty fun! Or what about something built like an H&R 9 shot .22 that is percussion, I'd buy that! Just brainstorming here, I have a bunch of cool ideas for guns.