i have a h-r 410-12mm . pat. feb.27. 1900and ser.#a82578. how much is this gun worth. thank. c. french.
12mm + 12cm
1.2 cm in 12mm
Need to know who made it, overall condition, accessories, box, papers, etc..
Wrong place to ask. This is for COLT firearms.
yes,12mm= approx 1/2inch.
A standard HSS drill bit in 12mm is all that's needed.
12mm is a length that's pretty close to 1/2 inch. (0.4724 inch)
12mm gives more spin on the cue ball
Cheaper Kentucky style pistol, 12mm is equal to .47 caliber, but they seem to be smaller than that. The apox. worth is 75.00. Not a target pistol, but fun to shoot, 20 grains of powder is a good size load.