.45 Colt with a .45-70 rim

[Lostinidaho]

I have a antique carbine with a camber that measure out to be about a 45 colt. To extract the rim needs to be about a .45-70. barrel slugs out to .465/.463.

Cut down .45-70 does not fit. To large at the base

Thoughts and ideas

Thanks in advance

[JimB..]

It’s gonna be some awfully thin brass if the chamber is .480 and the barrel is .465. Have you cast the chamber?

[Walks]

Could it be for that .45COLT ammo that was loaded for the COLT 1909. I seem to remember reading something about the rims being made wider because the standard cartridge rims would slip off the extractor, jamming up the revolver.

[Pavogrande]

spencer or maynard ??

[Lostinidaho]

Its actually a Sharps and Hankins. The .45 fits nicely. The rim is big enough to head space correctly. But not extract.

I have tried and fail to cast the chamber. It wont release. So I have gently heated the barrel and poured out the camber casting metal. I need to attempt again and just cast the chamber (no lead or rifling)

If I cant get a soft lead bullet to bump up when shot, I thought I would have to go to a heeled bullet