pictures of supported and unsupported chambers - XDTalk Forums - Your HS2000/SA-XD Information Source!

sewerman · 01-03-2006, 06:08 PM

hey, had shamus005 from firearms forum send these pics. thought maybe somebody here might find interesting.
topic : supported and unsupported chambers in semi auto hand guns.

dejadoo · 01-07-2006, 08:57 AM

Not knowing the difference between a supported and unsupported chamber, of the posted pics are the XD40 and the H&KUSP40 the supported chambers?

021411 · 01-07-2006, 09:07 AM

dejadoo, check out the 6 o'clock position of brass in the chamber.

JD McDorce · 01-07-2006, 09:38 AM

It probably be easier to visually distinguish the differences if the feed ramps were dirty.

sewerman · 01-07-2006, 03:38 PM

Sig, H & K, Steyr, and XD would be considered being fully supported more then the other makers shown.

clue, is if the feed ramp incroaches into the chamber area allowing the body of the cartridge to be exposed or unsupported.

if the cartridge looks completely surrounded or encased by the chamber then it tends toward being a FSC.

k8ysv · 01-09-2006, 06:44 AM

The Glock is the least supported of those shown. This is necessary to feed well due to the geometry of the barrel (Glocks have very low bore axes and don't tip up as much when feeding) and is done to improve reliability. My XD 40 NEVER fed anywhere near as smoothly as my G23 does.

Unless you're using overpressure ammo, soft-lead bullets, or reloads with used brass (NONE of which are recommended by the manufacturers) a fully supported chamber is not necessary. Don't sweat it.

ExtremeShot · 01-09-2006, 09:06 AM

Nice comparison. Thanks!

TheWillis · 01-09-2006, 04:05 PM

Quote:

Originally Posted by k8ysv

Unless you're using overpressure ammo, soft-lead bullets, or reloads with used brass (NONE of which are recommended by the manufacturers) a fully supported chamber is not necessary. Don't sweat it.

I find this humorous.

Why are ammo makers suddenly immaculately perfect, when it pertains to someone talking about glock kb's?

People are aways quick to point out that some XD's have bad finishes(factory defect) or any number of machine marks here and there(factory defect), but if you think that glocks KB, you will be ok using only factory ammo?

Why would you take the chance?

On GT there are many instances where people were using factory ammo and had KB's.

roberto-232 · 06-22-2006, 07:22 PM

I know this is kind of late but the Glock 31 .357 sig has a fully supported chamber.

01-03-2006, 06:08 PM	#1
sewerman XDTalk 100 Member Join Date: Dec 2005 Location: hurricane alley,florida Posts: 226	pictures of supported and unsupported chambers hey, had shamus005 from firearms forum send these pics. thought maybe somebody here might find interesting. topic : supported and unsupported chambers in semi auto hand guns. __________________ the armed citizen prevents tyranny "They that can give up an essential liberty to obtain a little temporary safety, deserve neither liberty nor safety!" Ben Franklin "When the government fears the people, there is liberty. When the people fear the government there is tyranny!" Thomas Jefferson my job smells like poop, but it's bread and butter to me!

01-07-2006, 09:07 AM	#3
021411 XDTalk 1K Member Join Date: Oct 2004 Location: Houston, TX Posts: 1,019	dejadoo, check out the 6 o'clock position of brass in the chamber. __________________ XD40 : Custom SA 1911 Springer Precision TX XD Practical Shooters Association

01-07-2006, 03:38 PM	#5
sewerman XDTalk 100 Member Join Date: Dec 2005 Location: hurricane alley,florida Posts: 226	pics supported and unsupported chambers Sig, H & K, Steyr, and XD would be considered being fully supported more then the other makers shown. clue, is if the feed ramp incroaches into the chamber area allowing the body of the cartridge to be exposed or unsupported. if the cartridge looks completely surrounded or encased by the chamber then it tends toward being a FSC. __________________ the armed citizen prevents tyranny "They that can give up an essential liberty to obtain a little temporary safety, deserve neither liberty nor safety!" Ben Franklin "When the government fears the people, there is liberty. When the people fear the government there is tyranny!" Thomas Jefferson my job smells like poop, but it's bread and butter to me!

01-09-2006, 09:06 AM	#7
ExtremeShot XDTalk 100 Member Join Date: Aug 2005 Location: Metro-East St. Louis NOT East St. Louis Posts: 106	Nice comparison. Thanks! __________________ --------------------------------- Now, Therefore, It Be And Is Hereby Resolved, that the people of Illinois, do oppose the enactment of any legislation that would infringe upon the Right of the People to Keep and Bear Arms, and deem such laws to be Unconstitutional and beyond lawful Legislative Authority.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

01-07-2006, 08:57 AM	#2
dejadoo XDTalk 100 Member Join Date: Nov 2005 Location: Austin, TX Posts: 120	Not knowing the difference between a supported and unsupported chamber, of the posted pics are the XD40 and the H&KUSP40 the supported chambers?

01-07-2006, 09:38 AM	#4
JD McDorce XDTalk 1K Member Join Date: Jun 2005 Location: Westland, MI Posts: 1,267	It probably be easier to visually distinguish the differences if the feed ramps were dirty.

01-09-2006, 06:44 AM	#6
k8ysv XDTalk Member Join Date: Mar 2005 Location: NE Ohio Posts: 89	The Glock is the least supported of those shown. This is necessary to feed well due to the geometry of the barrel (Glocks have very low bore axes and don't tip up as much when feeding) and is done to improve reliability. My XD 40 NEVER fed anywhere near as smoothly as my G23 does. Unless you're using overpressure ammo, soft-lead bullets, or reloads with used brass (NONE of which are recommended by the manufacturers) a fully supported chamber is not necessary. Don't sweat it.

06-22-2006, 07:22 PM	#9
roberto-232 XDTalk 100 Member Join Date: Jun 2006 Location: Texas Posts: 195	I know this is kind of late but the Glock 31 .357 sig has a fully supported chamber.