Home Forums Classifieds Blogs Today's Posts Search Social Groups


Glock Talk
Welcome To The Glock Talk Forums.
Thread Tools Display Modes
Old 03-12-2010, 22:46   #1
CLM Number 120
RWBlue's Avatar
Join Date: Jan 2004
Posts: 27,373
What makes a barrel accurate?

I think I know the basics, but it might help to start there.

It almost seems like accuracy in a factory rifle/semi-custom custom rifle or factory barrel/non-custom barrel is sometimes more art than science.
One day, I shall come back. Yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs and prove to me that I am not mistaken in mine.
RWBlue is offline   Reply With Quote
Old 03-15-2010, 11:39   #2
Zak Smith
Zak Smith's Avatar
Join Date: Aug 1999
Location: Fort Collins, CO, USA
Posts: 673
I am not a barrel maker, but I've interviewed one and shot a lot of premium match-grade barrels. If you pick out the top ten barrel makers for premium match barrels in the US (ie, custom barrels), they churn out barrel after barrel capable of winning matches. In this sense, the technology and techniques required to make very accurate barrels is known and repeatable. There are a whole host of things that these guys do to make an accurate barrel, including: using the right steel, doing the machining operations in the right order, cutting the right amount off at the right time, using good tooling, making sure twist rate is consistent, making sure internal dimensions are spot on, and hand-lapping the surface to make sure it's just right.

Also critically important is the operation of cutting the chamber. If this is not done true or it's screwed up in some other way (chatter etc), the chamber will harm accuracy.

In a factory rifle, many of those details may be bypassed because of a higher production rate. If you have a factory rifle that doesn't shoot, you may have to go back and attempt to fix any of those things that may be wrong: true threads, square shoulders and receiver face, no defects in chamber, and properly polished bore.
Zak Smith is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -6. The time now is 02:03.

GT Wiki
GT Blogs
Social Groups

Users Currently Online: 668
170 Members
498 Guests

Most users ever online: 2,244
Nov 11, 2013 at 11:42