really stupid question... - XDTalk Forums - Your HS2000/SA-XD Information Source!

Brush-Wolf-Lady · 09-24-2007, 02:49 PM

But why does the barrel look tilted up when the slide is back? Is this normal for all XD's? My friend's 1911 doesn't do that. I did see a gif of a video clip of some semi auto firing in slo mo and noticed same tilt up, but I have no idea if the gun in this gif is an XD.

Anyway I really gave no thought to it till yesterday when my friend came by to do some shooting, and he pointed it out.

40packin · 09-24-2007, 02:56 PM

Its normal for ALL polymer guns, Glocks and M&P's included. You have a floating barrel in there.

**jalley** · 09-24-2007, 02:56 PM

Its the design of the gun and it is supposed to tilt like that.

ichy_trigger · 09-24-2007, 03:12 PM

Its a locked breech design and the reason that the 1911 doesnt do that is because it uses a barrel link which acts as a cam to lock the barrel, the XD's barrel must tilt up and down in the breech area to lock and unlock as the weapon cycles.

The Knight Of Light · 09-24-2007, 03:29 PM

All auto pistols that use the browning short recoil system have barrels that drop down at the breech and look somewhat angled when locked open.

The 1911's link is the same as the machined "cam" on newer designs of auto pistol. It just uses different geometry to do it.

There is a great animation from STI available in a screen saver format here.
http://www.stiguns.com/downloads.html

Also this website has some great slow motion video of different firearms.
http://www.sscmagnum.de/hochgeschwindigkeitsvideos.htm

petey1 · 09-24-2007, 04:14 PM

Quote:

Originally Posted by The Knight Of Light

Also this website has some great slow motion video of different firearms.
http://www.sscmagnum.de/hochgeschwindigkeitsvideos.htm

Those are awesome videos.....thanks for posting

The Knight Of Light · 09-24-2007, 04:19 PM

Quote:

Originally Posted by petey1

Those are awesome videos.....thanks for posting

Welcome!

jtkratzer · 09-24-2007, 04:26 PM

I was under the impression that the barrel and attached feed ramp tilted to aid in the chambering of the next round during the cycle...

The Knight Of Light · 09-24-2007, 04:32 PM

Quote:

Originally Posted by jtkratzer

I was under the impression that the barrel and attached feed ramp tilted to aid in the chambering of the next round during the cycle...

Yep that is part of the Short Recoil system invented by John Browning.

Brush-Wolf-Lady · 09-24-2007, 07:50 PM

Thanks everyone, now I understand it and will tell him about it as well.

09-24-2007, 02:49 PM	#1
Brush-Wolf-Lady XDTalk 500 Member Join Date: Sep 2007 Location: Maryland Posts: 651	really stupid question... But why does the barrel look tilted up when the slide is back? Is this normal for all XD's? My friend's 1911 doesn't do that. I did see a gif of a video clip of some semi auto firing in slo mo and noticed same tilt up, but I have no idea if the gun in this gif is an XD. Anyway I really gave no thought to it till yesterday when my friend came by to do some shooting, and he pointed it out.

09-24-2007, 02:56 PM	#3
jalley XDTalk 1K Member Join Date: Feb 2005 Location: WV Posts: 1,409	Its the design of the gun and it is supposed to tilt like that. __________________ HS2000 Gen 1, HS2000 Gen 2 sc xd 9mm service xd 45ACP, service xd 9mm tactical xd 45ACP

09-24-2007, 03:12 PM	#4
ichy_trigger XDTalk 5K Member Join Date: Jan 2004 Location: Dayton, Ohio Posts: 7,525	Its a locked breech design and the reason that the 1911 doesnt do that is because it uses a barrel link which acts as a cam to lock the barrel, the XD's barrel must tilt up and down in the breech area to lock and unlock as the weapon cycles. __________________ "The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." http://militarysignatures.com/signatures/member2645.png

09-24-2007, 03:29 PM	#5
The Knight Of Light XDTalk 5K Member Join Date: May 2005 Location: Omaha, Nebraska Posts: 8,833 Blog Entries: 12	All auto pistols that use the browning short recoil system have barrels that drop down at the breech and look somewhat angled when locked open. The 1911's link is the same as the machined "cam" on newer designs of auto pistol. It just uses different geometry to do it. There is a great animation from STI available in a screen saver format here. http://www.stiguns.com/downloads.html Also this website has some great slow motion video of different firearms. http://www.sscmagnum.de/hochgeschwindigkeitsvideos.htm __________________ No Matter Where You Go, There You Are. USPSA #L3077 What a great number!!! http://theknightoflight.blogspot.com/ Creator of TOP 'O' THE PAGE!!! Moose Fight Last edited by The Knight Of Light; 09-24-2007 at 03:33 PM.

09-24-2007, 04:26 PM	#8
jtkratzer XDTalk 15K Member Join Date: Apr 2007 Location: Lancaster Co., PA Posts: 17,478	I was under the impression that the barrel and attached feed ramp tilted to aid in the chambering of the next round during the cycle... __________________ "I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson The Gun Lounge Pennyslvania Firearms Owners Association Hockey Forum

09-24-2007, 02:56 PM	#2
40packin XDTalk 100 Member Join Date: Aug 2007 Location: Las Vegas, ex-Californian Posts: 222	Its normal for ALL polymer guns, Glocks and M&P's included. You have a floating barrel in there.

09-24-2007, 07:50 PM	#10
Brush-Wolf-Lady XDTalk 500 Member Join Date: Sep 2007 Location: Maryland Posts: 651	Thanks everyone, now I understand it and will tell him about it as well.

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