Is a .25-20 SS. Might not hurt if they chambered from something a little more modern. Just a guess. This one shoots fairly well on the 100 yard butt.

Don't recall the load precisely and too lazy to go look, but it was something around 17 gr of Goex 3f and an Ideal 257283 of 30:1 alloy. About .030" compression and a .030 card wad. What is not shown in the picture is the aperture sight that mounts on the tang.

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I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain