Barrel Thickness

Gunnknutt · February 17, 2007, 11:43 AM

Today I noticed how much thinner the barrel wall is on my XD45 as compared to my Glock 9mm. The XD is only .065" and the Glock is .107". I would have presumed the .45 would have a heavier barrel. Any thoughts?

Jim Watson · February 17, 2007, 11:46 AM

.45 ACP operates at lower chamber pressure than 9mm, so it doesn't need as thick a barrel wall. Plus, they probably wanted to keep it as skinny as possible so they didn't have to bulk up the slide any more than necessary.

February 17, 2007, 11:43 AM	#1
Gunnknutt Junior Member Join Date: December 22, 2006 Location: Phoenix Posts: 3	Barrel Thickness Today I noticed how much thinner the barrel wall is on my XD45 as compared to my Glock 9mm. The XD is only .065" and the Glock is .107". I would have presumed the .45 would have a heavier barrel. Any thoughts? __________________ " A fear of weapons is a sign of retarded sexual and emotional maturity " Sigmund Freud

February 17, 2007, 11:46 AM	#2
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 18,541	.45 ACP operates at lower chamber pressure than 9mm, so it doesn't need as thick a barrel wall. Plus, they probably wanted to keep it as skinny as possible so they didn't have to bulk up the slide any more than necessary.