XD45 Barrel - Exterior Profile - XDTalk Forums - Your HS2000/SA-XD Information Source!

nbkky71 · 12-22-2006, 04:46 PM

Long time watcher to the forum here: finally registering and speaking up.

I picked up an XD45 tactical today and noticed the "step" in the contour of the barrel while cleaning.

Is the barrel of the XD45 supposed to be thicker at the muzzle? The middle of my barrel is approx .582" in diameter. The muzzle end is .589" in diameter. There is a definiate raised step in the contour.

My XD9 service has no such step on it's barrel.

**XDAndMe** · 12-22-2006, 04:49 PM

Welcome to the forum.

Quote:

Originally Posted by nbkky71

My XD9 service has no such step on it's barrel.

Mine does. It wasn't really noticeable until after I polished the blue off the barrel, though. It's definately thicker near the muzzle with a little "step" as you call it.

**XDAndMe** · 12-22-2006, 05:01 PM

Unfortunately, all I had available right now was the crappy cell phone camera... but here's a picture of my XD9 service muzzle. I drew an arrow where the "step" is and the barrel becomes thicker.

It's much easier to see, and more obvious, in person.

GW45NUT · 12-22-2006, 05:05 PM

Quote:

Originally Posted by nbkky71

Long time watcher to the forum here: finally registering and speaking up.

I picked up an XD45 tactical today and noticed the "step" in the contour of the barrel while cleaning.

Is the barrel of the XD45 supposed to be thicker at the muzzle? The middle of my barrel is approx .582" in diameter. The muzzle end is .589" in diameter. There is a definiate raised step in the contour.

My XD9 service has no such step on it's barrel.

I noticed that on my first cleaning even before I shot my XD45 Tactical. My theory is that they did that for a tighter barrel fit in the slide. Another thing I noticed right away was how much tighter on the lockup my XD was compared to my last Glock 21.

dave421 · 12-22-2006, 05:14 PM

I don't have a .45 but both of my XDs had/have the rise. My XD9 had it and my current XD40 have a slight "bulge" toward the muzzle.

Dick Webster · 12-22-2006, 05:48 PM

GW45NUT has it right when he said that it's for lock-up.
As the slide recoils back and the barrel tilts down to unlock, the smaller diameter, back from the muzzle, gives extra sliding clearance.
When the slide goes back to battery and the barrel tilts back up to lock, the larger diameter portion of the barrel end makes for a nice fit in the slide.
My SA 1911-A1 has the very same step in the barrel as my XD-45C.
I think that many locked-breech blow-back weapons probably have that.

nbkky71 · 12-22-2006, 05:50 PM

Thanks everyone. I figured it was supposed to serve as some form of a barrel bushing. Or perhaps the machinst fell asleep at the lathe!

Here's the very pronounced step in mine
http://home.carolina.rr.com/nbkky71/IMG_0749.JPG

She goes to the range on Sunday!

45+ · 12-22-2006, 06:09 PM

Welcome to the forum.

If you like your XD like I like my XD, you are really going to enjoy it.

Again, welcome...

Tactical_@dvantage · 12-22-2006, 06:17 PM

If you can see the 7 thousandths of an inch with your naked eye you really should think about a career in quality control!

**XDAndMe** · 12-22-2006, 06:31 PM

Quote:

Originally Posted by Tactical_@dvantage

If you can see the 7 thousandths of an inch with your naked eye you really should think about a career in quality control!

God, I worked as a QA engineer on an internship. Talk about the same old grind running test cases all day long, every day. That job bored me to tears and required 0 skills or thought whatsoever. I hope for people's sake that it's different elsewhere.

12-22-2006, 04:46 PM	#1
nbkky71 XDTalk Newbie Join Date: Dec 2006 Posts: 12	XD45 Barrel - Exterior Profile Long time watcher to the forum here: finally registering and speaking up. I picked up an XD45 tactical today and noticed the "step" in the contour of the barrel while cleaning. Is the barrel of the XD45 supposed to be thicker at the muzzle? The middle of my barrel is approx .582" in diameter. The muzzle end is .589" in diameter. There is a definiate raised step in the contour. My XD9 service has no such step on it's barrel.

12-22-2006, 06:09 PM	#8
45+ XDTalk Newbie Join Date: Jun 2006 Posts: 9	Welcome to the forum. If you like your XD like I like my XD, you are really going to enjoy it. Again, welcome... __________________ Keep safe! Keep packin'! NRA Life Member TSRA Life Member

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

12-22-2006, 05:01 PM	#3
XDAndMe XDTalk 3K Member Join Date: Sep 2006 Location: PA, USA Posts: 3,402	Unfortunately, all I had available right now was the crappy cell phone camera... but here's a picture of my XD9 service muzzle. I drew an arrow where the "step" is and the barrel becomes thicker. It's much easier to see, and more obvious, in person.

12-22-2006, 05:14 PM	#5
dave421 XDTalk 100 Member Join Date: Oct 2006 Posts: 175	I don't have a .45 but both of my XDs had/have the rise. My XD9 had it and my current XD40 have a slight "bulge" toward the muzzle.

12-22-2006, 05:48 PM	#6
Dick Webster XDTalk Newbie Join Date: Dec 2006 Posts: 4	GW45NUT has it right when he said that it's for lock-up. As the slide recoils back and the barrel tilts down to unlock, the smaller diameter, back from the muzzle, gives extra sliding clearance. When the slide goes back to battery and the barrel tilts back up to lock, the larger diameter portion of the barrel end makes for a nice fit in the slide. My SA 1911-A1 has the very same step in the barrel as my XD-45C. I think that many locked-breech blow-back weapons probably have that.

12-22-2006, 05:50 PM	#7
nbkky71 XDTalk Newbie Join Date: Dec 2006 Posts: 12	Thanks everyone. I figured it was supposed to serve as some form of a barrel bushing. Or perhaps the machinst fell asleep at the lathe! Here's the very pronounced step in mine http://home.carolina.rr.com/nbkky71/IMG_0749.JPG She goes to the range on Sunday!

12-22-2006, 06:17 PM	#9
Tactical_@dvantage XDTalk 100 Member Join Date: Jul 2006 Location: Saint Louis Missouri Posts: 109	If you can see the 7 thousandths of an inch with your naked eye you really should think about a career in quality control!