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Hyperion45 10-06-2010 06:02 AM

M1876 rechambering?
Hello all,

This is my inaugural post, so I'd just like to say hi right off the bat. I'm pretty new to the firearm community in general, so forgive my lack of knowledge.

Anyway, I've been shooting lever guns for about 6 months now (mainly a Winchester 92 Trapper reissue that I've borrowed from my uncle) and just now found out about Cimarron Firearms and their gorgeous M1876 carbine reproductions. I love the aesthetic of the rifle, and seeing as I'm looking to purchase my own longarm, this seems like a pretty good place to start.

My one concern is the round it fires--for those not familiar, it's available in either .45-60 or .45-75 Win. Both of these are fairly uncommon bullet types, near as I can tell, and sell for a high price (I was able to find a box of 20 in each kind online--but they were both sold out and had an asking price of $70!)

My question is this--would it be possible for a gunsmith to rechamber the rifle in a more common round (I'm thinking .45-70 Government) without substantially altering its appearance or functionality (i.e. capacity, reliability, etc.)

Thanks in advance,


stalkingbear 10-06-2010 02:25 PM

A gunsmith should have no problem rechambering the .45/60 to .45/70 if the .45/70 is simply longer. To be SURE I'll have to consult the cartridge dimensions of the .45/60 however. You'll want to keep ammo pressures low as the design is not made for higher pressures. Shoot ammo designed for Trapdoor Springfields only. He also may have to modify the follower in regards to cartridge length.

Hyperion45 10-07-2010 07:41 PM

Thanks, stalkingbear. Not to belabor the point, but if we're talking about ammo pressures, wouldn't it make more sense to spring for the .45-75 model and chamber down? Again, being a neophyte in this world I could be way off, but that just jumps out at me as a solution.

quigleysharps4570 10-08-2010 01:10 AM

The action isn't long enough for the 45-70 cartridge. The action won't allow a cartridge longer than 2 1/4" overall length. The 45-75 is a short, fat, bottlenecked case is why it works. I chose the 45-60 because of all the 45-70 brass I had on hand to cut down.

gooose 10-09-2010 06:07 PM

Bullets for .45 cal are readily available. Loaded ammunition or cartridges for the 45-75 and 45-60 are not readily available and what is there is expensive. Have you considered reloading?

Hyperion45 10-11-2010 06:57 AM

I appreciate all the advice, guys, but the more I look into it, the more this whole idea appeals less and less to me--it seems like I'd do just as well to get a less esoteric rifle chambered in .357 or .44 Mag. Thanks anyhow!

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