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S&W Revolvers: 1980 to the Present All NON-PINNED Barrels, the L-Frames, and the New Era Revolvers


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Old 03-02-2021, 12:45 AM
moonshine44 moonshine44 is offline
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Default 45ACP or 45GAP in a 45 Colt Mt. Gun?

This is probably going to sound like a really dumb question, but is it possible to fire either 45ACP or 45GAP rounds in a 45 Colt Mountain Gun using moon clips? I'm asking because I recently sold almost 1000 unfired Starline 45GAP cases because I knew I didn't have an auto that they would work in, never thinking about the fact that I have three N-frames chambered in 45 Colt. Did I make a really bad mistake? Should I have kept the GAP cases?
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Old 03-02-2021, 12:49 AM
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45ACP or 45GAP in a 45 Colt Mt. Gun?  
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you would need to have the cylinder cut for moonclips
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Old 03-02-2021, 01:00 AM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Google TKcustom. They machine cylinders for moon clips. Just send them the cylinder assembly and a mo. They did my Jframe. They also do N frame guns like your mountain gun. Plus you can still shoot .45colt as they leave a ring where the long colt brass can rest while the acp in clips sits in the cutout part. Oops, should have kept a couple hundred GAP but .45 acp is everywhere. Plus .45 acp brass would work a little better as there will be less bullet jump and should help with your accuracy.

Last edited by Baltimoreed11754; 03-02-2021 at 01:42 AM.
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Old 03-03-2021, 01:53 PM
moonshine44 moonshine44 is offline
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Quote:
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you would need to have the cylinder cut for moonclips
Oops, hadn't thought of that, and I should have. Thanks!
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Old 03-03-2021, 01:55 PM
moonshine44 moonshine44 is offline
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Quote:
Originally Posted by Baltimoreed11754 View Post
Google TKcustom. They machine cylinders for moon clips. Just send them the cylinder assembly and a mo. They did my Jframe. They also do N frame guns like your mountain gun. Plus you can still shoot .45colt as they leave a ring where the long colt brass can rest while the acp in clips sits in the cutout part. Oops, should have kept a couple hundred GAP but .45 acp is everywhere. Plus .45 acp brass would work a little better as there will be less bullet jump and should help with your accuracy.
Thanks for the information. I've got scads of .45 ACP brass but a thread here about .45 GAP caught my eye and made me think about the whole concept. I think what I may actually do is just look for an N-frame in .45 ACP. But I will keep what you said here in mind. Thanks again!
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Old 03-03-2021, 03:28 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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I had pinnacle machine a cylinder to use .45acp in a 625 .45 Colt about 15 years ago.

https://pinnaclehighperformance.com/cylinder-work/
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Old 03-03-2021, 07:25 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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How did you handle blueing in the cut part of the cylinder?


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Old 03-03-2021, 07:26 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Quote:
Originally Posted by Dump1567 View Post
I had pinnacle machine a cylinder to use .45acp in a 625 .45 Colt about 15 years ago.

https://pinnaclehighperformance.com/cylinder-work/

How did you handle bluing the machined area?


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Old 03-03-2021, 07:29 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Quote:
Originally Posted by Baltimoreed11754 View Post
Google TKcustom. They machine cylinders for moon clips. Just send them the cylinder assembly and a mo. They did my Jframe. They also do N frame guns like your mountain gun. Plus you can still shoot .45colt as they leave a ring where the long colt brass can rest while the acp in clips sits in the cutout part. Oops, should have kept a couple hundred GAP but .45 acp is everywhere. Plus .45 acp brass would work a little better as there will be less bullet jump and should help with your accuracy.

FYI I called TK to ask if my rimz moon clips would fit OK in the machined area and he said I should send one of the rimz clips with the cylinder if I was to do it.


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Old 03-03-2021, 07:57 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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How did you handle bluing the machined area?


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The 625 is a stainless revolver, bluing not needed. But I would assume that most shops that offer these cuts also offer re-bluing services.
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Old 03-03-2021, 07:58 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Quote:
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How did you handle bluing the machined area?


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Mine was a stainless gun. But I would either not worry about it, or hit it with some touch-up bluing from Brownells.
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Old 03-03-2021, 09:50 PM
moonshine44 moonshine44 is offline
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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I checked out TK Custom and I liked what I saw. Might be time to save some pennies and get one of my N-frames done by them. I'm not sure why; maybe it's just because I think it would be cool to have the option if 'twere necessary...
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Old 03-03-2021, 10:05 PM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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Look at Pinnacle also then pick between them. They both do great work.
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Old 03-04-2021, 12:53 AM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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I fixed the problem by years ago by buying a mtn gun in 45 acp. Mine in 45LC just gets 45lc.
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Old 03-04-2021, 06:48 AM
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45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun? 45ACP or 45GAP in a 45 Colt Mt. Gun?  
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One thing to remember with dual cartridge revolvers is each time you swap cylinders you need to resight. I am not keen on that so once I find a load I like, that is all I use in that revolver.

I am gradually getting rid of my long Colt revolvers in favor of the 45 ACP.

Kevin
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