new .45 Auto Rim revolvers?


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Old 12-05-2011, 05:32 PM   #1
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Default new .45 Auto Rim revolvers?

Are they any .45 Auto Rim revolvers still in production?



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Old 12-05-2011, 05:41 PM   #2
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Yes & no.
.45 Auto Rim is a solution for revolvers chambered in .45 acp. It exists simply because Moon Clips and 1/2 moon clips can be tiresome for some. As far as I know, revolvers weren't actually intended for .45 AR as such. .45 AR was simply a solution designed to make the surplus .45 acp 1917 revolvers easier to own.
S&W makes several .45 ACP revolvers.
Edit:

http://en.wikipedia.org/wiki/.45_Auto_Rim



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Old 12-05-2011, 05:51 PM   #3
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Any revolver chambered for the .45ACP can also fire the .45 Auto Rim. The reason is, because a revolver chambered for .45ACP has to use either full moon clips or half moon clips to chamber it, so the .45 Auto Rim is basically a .45ACP with a rim.

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Old 12-05-2011, 05:58 PM   #4
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Thanks guys

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Old 12-08-2011, 06:55 PM   #5
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Quote:
Originally Posted by Firearms4ever View Post
Any revolver chambered for the .45ACP can also fire the .45 Auto Rim. The reason is, because a revolver chambered for .45ACP has to use either full moon clips or half moon clips to chamber it, so the .45 Auto Rim is basically a .45ACP with a rim.
I can chamber and shoot 45ACP cartridges in my Smith and Wesson 45ACP revolvers WITHOUT a full or half moon clip. The chambers are head spaced internally and the clip serves only to extract the fired cases. In the absence of a clip, I can use a 3/8" wooden dowel to push out the fired cases.

This doesn't work with Colt revolvers because the chambers are bored completely through and the clips are needed to head space the cartridges.

The 45 Auto Rim cartridge solves both the head space and extraction problems in all 45ACP revolvers.
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Old 12-09-2011, 08:40 AM   #6
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Quote:
Originally Posted by tallyman View Post
I can chamber and shoot 45ACP cartridges in my Smith and Wesson 45ACP revolvers WITHOUT a full or half moon clip. The chambers are head spaced internally and the clip serves only to extract the fired cases. In the absence of a clip, I can use a 3/8" wooden dowel to push out the fired cases.

This doesn't work with Colt revolvers because the chambers are bored completely through and the clips are needed to head space the cartridges.

The 45 Auto Rim cartridge solves both the head space and extraction problems in all 45ACP revolvers.
I believe only the early Colt Model 1917s had a bored through cylinder. That was corrected. All the current stuff has a chamber similar to the 1911. More recently there were stories of the chambers on S&W 625s being cut slightly more deeply. Don't really know why, but it made ignition of unsupported cartridges more difficult. Some of us solve that problem with slightly longer firing pins.

Of the current production .45 ACP/AR revos, I like the 625JM and 625PC.


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