91 Argentine Carbine Firing Pin Protrusion........

[Brownwater]

Anyone point me to where I can find the proper pin protrusion for this rifle? Thanks, Butch.

[Patrick Chadwick]

I doubt that you will be able to find a specification. The firing pin protrusion on my M1891 Argentine Engineers Carbine is 0.0052", works well, good rounded tip, no severe wear. I hope that helps.

Depending on the strength of the firing spring and the head clearance (i.e. the longitudinal "slop" when you load a real cartridge, NOT gauged headspace), anything from about 0.0045 " to 0.0060" should work. Much less, and there may be misfires. Much more, and you may start punching holes in the primers.


Patrick

[HOOKED ON HISTORY]

Depending on the strength of the firing spring and the head clearance (i.e. the longitudinal "slop" when you load a real cartridge, NOT gauged headspace), anything from about 0.0045 " to 0.0060" should work. Much less, and there may be misfires. Much more, and you may start punching holes in the primers.

Found your post while researching my new 1891 Carbine (see new post).You seem to know more than bit about these fine little gals so perhaps you could shed some light. Upon post purchase examinination which should have been prepurchase examination I found the bolt had been incorrectly reassembled leaving the firing pin protruding in the uncocked position. I disassembled with some difficulty (this is not your fathers K98) and reassambled with the firing pin screwed all the way in. Now with the bolt in the uncocked position the tip of the firing pin is flush with the bolt face.With the bold removed when I rotate the cocking assembly counter clockwise until it clicks the pin extends past the bolt face by .062". Is this the correct procedure for mesurement of the protrusion? The bolt has no Serial # . If the headspace is out of spec could one of the NOS bold bodies floating about correct the issue? I was thinking of purchasing one for cosmetic reasons as it looks a bit rough like someone let the cocking piece strike the rear of the bolt body trying to assemble the bolt and the shaft of the bolt body is scratched a bit. I try to replace as many non numbered botched parts ,screws etc.. while the parts are still around. Any help would be appreciated.