Triple Chambering?
- Thread starter Arethusa
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alchemist11
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three chamberings
The problem is with the headspacing of the cartridges. the .454 and the .45 colt have rims of similar thickness, so that's no problem. The .45 acp has a rebated rim, so the clips make up for that, but when used with the acp cartridge actually makes it so the rim is thicker than the .454 and .45 colt creating a different headspacing of the cartridge from the .454 and the .45 colt. That's why the .45 auto rim was developed. That rim was thicker than the .45 colt. In revolvers that chamber the .45, the chamber is reamed shallow enough so the acp cartridge can fit into the chamber and headspace properly without a clip or be used with a clip. Dan wesson made a large framed gun once which handled three cartridges, .45 acp, 45 rowland and .45 win mag, all rebated rim cartridges that are only by length of the case. The .45 acp was shorter enough from the other two cartridges, that accuracy with it was poor.
The problem is with the headspacing of the cartridges. the .454 and the .45 colt have rims of similar thickness, so that's no problem. The .45 acp has a rebated rim, so the clips make up for that, but when used with the acp cartridge actually makes it so the rim is thicker than the .454 and .45 colt creating a different headspacing of the cartridge from the .454 and the .45 colt. That's why the .45 auto rim was developed. That rim was thicker than the .45 colt. In revolvers that chamber the .45, the chamber is reamed shallow enough so the acp cartridge can fit into the chamber and headspace properly without a clip or be used with a clip. Dan wesson made a large framed gun once which handled three cartridges, .45 acp, 45 rowland and .45 win mag, all rebated rim cartridges that are only by length of the case. The .45 acp was shorter enough from the other two cartridges, that accuracy with it was poor.
I'm still not clear on how it's possible to dual chamber for .45LC and .45ACP, then, but Dustin Linebaugh does seem to offer it. And if that is possible and it is possible to dual chamber for .454 Casull and .45LC, shouldn't it be possible to chamber for all three? I'm not suggesting that accuracy would really be all that spectacular with .45ACP.
RecoilRob
Member
Anything chambered for .45 Colt can chamber and fire the .45 Schoefield, can't it? So, wouldn't any 454 Casull be a 'triple chambered' weapon?
Standing Wolf
Member in memoriam
I believe the late, lamented .357 maximum would chamber all three cartridges.
The S&W 460XVR can chamber and fire four different rounds.
1. .460 mag.
2. .454 Casull
3. .45 Colt
4. .45 Schofield.
Of course any .454 Revolver can shoot 2,3, and 4.
I'm sure any first class gunsmith could alter most any .454 Casull/.45 Colt
DA revolvers to also shoot the .45 acp.
1. .460 mag.
2. .454 Casull
3. .45 Colt
4. .45 Schofield.
Of course any .454 Revolver can shoot 2,3, and 4.
I'm sure any first class gunsmith could alter most any .454 Casull/.45 Colt
DA revolvers to also shoot the .45 acp.
And don't forget the 38 S&W will chamber in the .357 as well so you have a triple without going to the maximum and quad if you do.
Another triple is the 32 H&R mag which will shoot the 32 S&W and the 32 S&W long. Since the 32 Auto is semi rimmed you can in a pinch use those also.
bpisler
Member
38 super can be fred from 357 mag revolvers,
they will chamber in 38 special guns but i
would not fire them.
they will chamber in 38 special guns but i
would not fire them.
Stainz
Member
Any .44 Magnum will also chamber and fire the previous S&W cartridge of the same diameter - the .44 Special. Of course, anything chambering that cartridge would also take the original 1871 version, the .44 Russian. I'd opt for a smokeless propellant .44 Russian rather than the original blackpowder - that is tough to clean!
The problem with any of the shorter cased rounds firing in a long chamber is the crud/lead residue that will accumulate between the shorter case's mouth and the chamber's step. This can cause two problems - difficulty in fully chambering a longer cased round, an inconvenience, and, a possibly destructive cylinder failure due to a chamber pressure spike as a case's mouth is prevented from opening (uncrimping) by the crud buildup. The problem really becomes pronounced in a high pressure round, such as the .454 Casull. This can be alleviated, if shorter cases are frequently used, by simply brushing with a properly sized chamber brush, solvent, and allowing some time for the latter to work. Another approach, which I adapted to my .454 SRH use, is to down load larger cases - for my example, I made some very wimpy, normal .45 Colt-ish, .454 Casull loads.
Be safe - and... Have a Merry Christmas!
Stainz
The problem with any of the shorter cased rounds firing in a long chamber is the crud/lead residue that will accumulate between the shorter case's mouth and the chamber's step. This can cause two problems - difficulty in fully chambering a longer cased round, an inconvenience, and, a possibly destructive cylinder failure due to a chamber pressure spike as a case's mouth is prevented from opening (uncrimping) by the crud buildup. The problem really becomes pronounced in a high pressure round, such as the .454 Casull. This can be alleviated, if shorter cases are frequently used, by simply brushing with a properly sized chamber brush, solvent, and allowing some time for the latter to work. Another approach, which I adapted to my .454 SRH use, is to down load larger cases - for my example, I made some very wimpy, normal .45 Colt-ish, .454 Casull loads.
Be safe - and... Have a Merry Christmas!
Stainz
mtnbkr
Member
Yup. I also believe the 38 Colt (long and short) series of rimmed cartridges would work as well. There's also Dan Wesson's 357 SuperMag, which is between the 357mag and 357max in length, IIRC. That would give you 6 cartridges in one gun (assuming 357max chambering).Standing Wolf said:
However, once you get too far from the length of the intended chambering (ie 38special or shorter in the 357max chamber), accuracy would probably decrease.
Chris
mtnbkr
Member
The 38S&W has a different bullet diameter than 357mag. The 38S&W is a .360 diameter bullet, compared to the 38(long and short) Colt, 38special, 357mag, and 357max diameters of .357".
Chris
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