Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel straightening.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="J E Custom" data-source="post: 1871764" data-attributes="member: 2736"><p>My favorite barrel makers have the instruments to verify the straightness of their barrels Depending on the process, straightness is one of the last things they check before shipping. </p><p></p><p>They have their standards for rejection and stick to it. Some barrels "DO" end up absolutely straight. others are within their tolerances. This is the stage separates the good from the also ran boys.</p><p></p><p>.00000 Is the goal but often .0005- is the norm. for the maker with good procedures and quality control. Some set their maximum standards at .005 to .007 and will tell you that it will shoot. I have no doubt they are right, but how well is my problem. </p><p></p><p>My favorite barrel maker limits his to .0001 bore straightness and .0015 Run out on the contour.</p><p>Others will have as much as .0003 for bore straightness. Everyone has their favorite barrel baker and should know what he excepts buy checking "Every" one they use and decide which one is the best for them.</p><p></p><p>Some build barrels and sell them based on their quality and have 3 or 4 grades, so you must decide what quality you will pay for. a few build to a spec. and produce only one grade. they are on the upper end of cost but are as good as you can get.</p><p></p><p>I have never found an out of tolerance barrel from my favorite barrel maker (The reason he is my favorite) I do find an occasional reject barrel by their standards from some makers (The better ones) and some barrels will just not pass even My standards so they are not used.</p><p></p><p>I also questioned some of the top 4 makers as what was done with their barrels that were out of their acceptance tolerance. They said that they re bored them to a larger caliber and re rifle them. If they don't meet the tolerance after this they are tossed.</p><p></p><p>Also If barrels are properly stress relieved, they will retain their dimensional integrity. If not properly stress relieved they can change especially if any additional machining is done (Like fluting) so it is best to get any work like this done at the barrel makers because he should do final tolerance checks before shipping. </p><p></p><p>In my opinion, Barrels are the heart of an accurate rifle and if the barrel is not the best, accuracy will also not be the best no matter How well you do everything else.</p><p></p><p>Like everything else, barrel makers will produce the quality that you except.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1871764, member: 2736"] My favorite barrel makers have the instruments to verify the straightness of their barrels Depending on the process, straightness is one of the last things they check before shipping. They have their standards for rejection and stick to it. Some barrels "DO" end up absolutely straight. others are within their tolerances. This is the stage separates the good from the also ran boys. .00000 Is the goal but often .0005- is the norm. for the maker with good procedures and quality control. Some set their maximum standards at .005 to .007 and will tell you that it will shoot. I have no doubt they are right, but how well is my problem. My favorite barrel maker limits his to .0001 bore straightness and .0015 Run out on the contour. Others will have as much as .0003 for bore straightness. Everyone has their favorite barrel baker and should know what he excepts buy checking "Every" one they use and decide which one is the best for them. Some build barrels and sell them based on their quality and have 3 or 4 grades, so you must decide what quality you will pay for. a few build to a spec. and produce only one grade. they are on the upper end of cost but are as good as you can get. I have never found an out of tolerance barrel from my favorite barrel maker (The reason he is my favorite) I do find an occasional reject barrel by their standards from some makers (The better ones) and some barrels will just not pass even My standards so they are not used. I also questioned some of the top 4 makers as what was done with their barrels that were out of their acceptance tolerance. They said that they re bored them to a larger caliber and re rifle them. If they don't meet the tolerance after this they are tossed. Also If barrels are properly stress relieved, they will retain their dimensional integrity. If not properly stress relieved they can change especially if any additional machining is done (Like fluting) so it is best to get any work like this done at the barrel makers because he should do final tolerance checks before shipping. In my opinion, Barrels are the heart of an accurate rifle and if the barrel is not the best, accuracy will also not be the best no matter How well you do everything else. Like everything else, barrel makers will produce the quality that you except. J E CUSTOM [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel straightening.
Top