K frame .45


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Josh Aston
July 18, 2008, 04:43 PM
Would it be possible to fit 5 rds of .45 Colt into a K Frame? If so who would be the best gunsmith to do it?

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Jim Watson
July 18, 2008, 04:47 PM
Years ago Spokhanguns built a five shot .45 M&P.
As I recall, they said "maybe we went a little too far" and declined to do another.

SaxonPig
July 18, 2008, 05:29 PM
Why would you want a $3,000 revolver?

Josh Aston
July 18, 2008, 05:41 PM
Why would you want a $3,000 revolver?

Because I can. And because .45 Colt is my favorite cartridge. And a 3" barrelled .45 S&W 65 would just be way too cool.

Deer Hunter
July 18, 2008, 05:46 PM
.44 Special is stretching it in even an L-frame.

Brian Williams
July 18, 2008, 05:49 PM
Spokehandguns also did a number of K frame 44 specials, but Taurus has done both a 45 ACP and Colt in a Kframe size gun, the Tracker. I had a 4" 45 Colt and it was a nice gun, sold it to fund something else. I should have kept it and shortened the barrel to 3" and gotten some of the nicer wood grips that are out there today.

Jim Watson
July 18, 2008, 06:46 PM
Several shops have done .44 Special K-Smiths (and Ruger Speed Sixes) but I forgot about the Trackers.
Taurus seems not now to be making anything but the ridiculous "Judge" with that bolt circle, though.

Tom Servo
July 18, 2008, 07:00 PM
Deerhunter hit it on the head. The larger the cartridge, the thinner the forcing cone and cylinder walls get. I have a S&W 696, which is a great carry gun, but I wouldn't run heavy Keith loads through it.

Even for a .457" casing, you're making some compromises on the K/L frames. Even though it CAN be done, I don't imagine it being very durable in the long run.

Josh Aston
July 21, 2008, 01:17 PM
I wouldn't use something like this for nuclear handloads, just mild defense loads.

rcmodel
July 21, 2008, 02:30 PM
O.K., lets try one more time.

The barrel threads on a .38/.357 K-Frame measures .542" O.D., not counting the gas-shield ring relief cut on the bottom of the barrel shank.

The barrel shank on an N-Frame measures .668", and it doesn't have a relief cut in the barrel shank weakening it.

By the time you cut the forcing cone in a .45 caliber K-Frame barrel, it would almost be a knife edge at the gas ring relief cut.

Further, the cylinder wall thickness on a .38/.357 K-Frame is about .083".

A .45 ACP case measures .476" at the head.

Subtract the .380" of the .38/.357 chamber from .476" and you have .096".
Divide that by two, and you have only .049" cylinder wall left, or only about half as much as on a .38 Special.

And you have seriously cut into the cylinder ratchet / extractor star on the other side of each chamber, which would make timing very difficult.

Bottom line = K-Frames are not big enough to chamber them in .45 ACP and have any safety margin or timing reliability left.

rcmodel

Walkalong
July 21, 2008, 04:55 PM
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