My wifes grandfather recently gave me a box with some old ammo in it. Pretty cool full boxes of old Winchester and Remington shot gun shells. Coolest thing was a plastic baggy of old rimfire cartridges. The bullet diameter is 0.407. Tip of the bullet to the back of the case is .907 Headstamp is a "U". Looked it up and it looks to be a .41 short rimfire. 130 gr bullet alittle over 400fps. Apparently they are for an old derringer type pistol. Anyone more familiar with this than me?
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"I would say my favorite gun is whatever is next to me with the most ammo." Ted Nugent