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
Reloading
Varmint Al's barrel break-in method
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="ntsqd" data-source="post: 2659947" data-attributes="member: 93138"><p>A highly polished bore would have too much bearing area and create a huge amount of friction. Same is true for an incredibly rough bore finish. It seems to me that there's some sort of sweet spot in bore finish where it's just rough enough to not cause a lot of friction ('the bore sped up") and not so rough that it has a lot of friction and fouls easily. I'm sure that this ideal surface roughness range is quantifiable. I'm also sure that the top tier barrel makers have put a lot of thought and effort into identifying that range and how to achieve it, and for some achieving that may require following their "break-in" procedure. The maker who says "just shoot it" has likely refined their procedures to the point where no "break-in" is needed as the final step in making the barrel.</p><p></p><p>Two barrels made by different people, on the same machine, are going to be different. It may be subtle and it may not, but different they will be. I suspect that systems like the Tubbs remove those nuanced differences in bore finish and substitutes it's own. If you shoot as often as David Tubbs does (or did?) then consistency from one barrel to the next is an important consideration. Having a consistent method for achieving that bore finish uniformly would be huge in a game where you go through barrels at a high rate.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 2659947, member: 93138"] A highly polished bore would have too much bearing area and create a huge amount of friction. Same is true for an incredibly rough bore finish. It seems to me that there's some sort of sweet spot in bore finish where it's just rough enough to not cause a lot of friction ('the bore sped up") and not so rough that it has a lot of friction and fouls easily. I'm sure that this ideal surface roughness range is quantifiable. I'm also sure that the top tier barrel makers have put a lot of thought and effort into identifying that range and how to achieve it, and for some achieving that may require following their "break-in" procedure. The maker who says "just shoot it" has likely refined their procedures to the point where no "break-in" is needed as the final step in making the barrel. Two barrels made by different people, on the same machine, are going to be different. It may be subtle and it may not, but different they will be. I suspect that systems like the Tubbs remove those nuanced differences in bore finish and substitutes it's own. If you shoot as often as David Tubbs does (or did?) then consistency from one barrel to the next is an important consideration. Having a consistent method for achieving that bore finish uniformly would be huge in a game where you go through barrels at a high rate. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Varmint Al's barrel break-in method
Top