"Original" Colt 1911s chambered in .38AMU

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"Original" Colt 1911s chambered in .38AMU

Post by Rob Kovach on Sun Jan 24, 2016 9:29 pm

First topic message reminder :

This bit of history goes way back.

Back in the 50s the AMU took a 1911 in .38 Super, reamed out the chamber deep enough for a rimless .38spl (that the AMU made on a lathe out of .38spl brass) case and created a new caliber known as .38 AMU to create a more competitive centerfire gun.

I'm hoping that one of you guys was around back then. There are guys trying to collect the old Colt .38 AMU bullseye guns and we are trying to figure out if there were any of these guns produced in the Colt factory or if they were all converted by armorers and gunsmiths in the aftermarket.

Let me know what you guys remember about those .38 AMUs.

Rob Kovach
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Re: "Original" Colt 1911s chambered in .38AMU

Post by Christopher Miceli on Wed Jan 27, 2016 2:41 pm

A thousand cartridges should do  lol!

Christopher Miceli

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Re: "Original" Colt 1911s chambered in .38AMU

Post by fc60 on Wed Jan 27, 2016 2:51 pm

Greetings,

The 38 AMU is not rimless, it is a semi-rim like the 38 super.

The 38 AMU barrels were chambered such that the head space was controlled by the rim, not the mouth like some 38 Super offerings.

Cheers,

Dave

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Re: "Original" Colt 1911s chambered in .38AMU

Post by teg2658 on Thu Jan 28, 2016 12:13 pm

In the book "U.S. Military Match and Marksmanship Automatic Pistols" authored by Bill Jenkins there is 7 pages with pictures about the 38AMU. Any questions or details one may ask are covered.
Tom Ginovsky

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Re: "Original" Colt 1911s chambered in .38AMU

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