Fully supported chambers for .45 ACP +P ?

WIN1886 · September 8, 2013, 11:10 AM

This picture shows the .45 acp cartridge inserted into the chamber of my S&W 4506 barrel.....my camera skills are lacking but hopefully you can see the case exposure going up the feed ramp ! I'm not sure what is considered supported and non- supported as far as how much case is exposed beyond the extractor groove ! There is only a slight smile of brass showing right under the feed ramp on mine ! So what would you consider my chamber as ? Thanks !

RickB · September 8, 2013, 12:25 PM

Usually, a .45 ACP barrel with a ramp is considered supported. All .45 ACP ammo is designed to be fired in the unsupported barrels of "1911s", so your Smith should certainly be able to handle +P.

Ridgerunner665 · September 8, 2013, 01:19 PM

That is a supported chamber...

6.8 · September 8, 2013, 08:33 PM

I think their is one at my LGS. I'll check it. That gun has a rep for being one of the toughest factory 45's ever built. I've got the 4566tsw variant and I've "never" seen a bbl with more chamber support. But it may be slightly diff. Than yours.

WIN1886 · September 10, 2013, 05:36 PM

Quote:

That gun has a rep of being one of the toughest factory 45's ever built.

Yes , I heard that rumor and I'm hoping it is true !

Dan-O · September 10, 2013, 05:50 PM

Yep. The Gen 3 Smittys have some of the best chamber support around. And yet they feed empty cases from the mag....go figure.

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September 8, 2013, 12:25 PM	#2
RickB Senior Member Join Date: March 1, 2000 Location: Boise, ID Posts: 8,517	Usually, a .45 ACP barrel with a ramp is considered supported. All .45 ACP ammo is designed to be fired in the unsupported barrels of "1911s", so your Smith should certainly be able to handle +P.

September 8, 2013, 01:19 PM	#3
Ridgerunner665 Senior Member Join Date: June 22, 2007 Location: Upper East Tennessee Posts: 477	That is a supported chamber...

September 8, 2013, 08:33 PM	#4
6.8 Junior member Join Date: February 21, 2013 Posts: 316	I think their is one at my LGS. I'll check it. That gun has a rep for being one of the toughest factory 45's ever built. I've got the 4566tsw variant and I've "never" seen a bbl with more chamber support. But it may be slightly diff. Than yours.

September 10, 2013, 05:50 PM	#6
Dan-O Senior Member Join Date: August 3, 2011 Location: Northern Colorado Posts: 969	Yep. The Gen 3 Smittys have some of the best chamber support around. And yet they feed empty cases from the mag....go figure.