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
Rifles, Bullets, Barrels & Ballistics
bad grouping. possible worn out barrel???
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="nosualc" data-source="post: 1030749" data-attributes="member: 19537"><p>Unless you've shot it very hot, I think it unlikely you've worn out your barrel.</p><p></p><p>More likely is that the throat has eroded to the point where your usual load is no longer in tune like it once was. For example, if you were originally jumping .010", you are now jumping .025". Seat your bullets out further in .005" increments and test. You'll likely find yourself back in tune. VLDs have a reputation for being seating depth sensitive.</p><p></p><p>The other likely possibility is carbon or copper build-up. Most guys think their barrels are clean when they're really not. Here's where a bore scope is invaluable.</p><p></p><p>Without that, I'd recommend a deep clean with some J-B cleaning compound. Wrap a patch around a brush, soak it with some kroil, and goop on a bunch of J-B. With a bore guide, stroke the entire bore may 10-12 times, putting a clean patch and J-B on each stroke. Then do another patch with J-B and short stroke the first 6 or so inches of the bore maybe another 10-12 times. Clean the bore thoroughly with clean patches and rubbing alcohol. This will clean out copper and carbon, especially in the throat area, where barrel wear will be the worst.</p><p></p><p>Good luck,</p><p></p><p>-nosualc</p><p></p><p>ps - Buy another barrel and get it ready. Barrels are like tires; they wear every time you use them. Best to have a spare.</p></blockquote><p></p>
[QUOTE="nosualc, post: 1030749, member: 19537"] Unless you've shot it very hot, I think it unlikely you've worn out your barrel. More likely is that the throat has eroded to the point where your usual load is no longer in tune like it once was. For example, if you were originally jumping .010", you are now jumping .025". Seat your bullets out further in .005" increments and test. You'll likely find yourself back in tune. VLDs have a reputation for being seating depth sensitive. The other likely possibility is carbon or copper build-up. Most guys think their barrels are clean when they're really not. Here's where a bore scope is invaluable. Without that, I'd recommend a deep clean with some J-B cleaning compound. Wrap a patch around a brush, soak it with some kroil, and goop on a bunch of J-B. With a bore guide, stroke the entire bore may 10-12 times, putting a clean patch and J-B on each stroke. Then do another patch with J-B and short stroke the first 6 or so inches of the bore maybe another 10-12 times. Clean the bore thoroughly with clean patches and rubbing alcohol. This will clean out copper and carbon, especially in the throat area, where barrel wear will be the worst. Good luck, -nosualc ps - Buy another barrel and get it ready. Barrels are like tires; they wear every time you use them. Best to have a spare. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
bad grouping. possible worn out barrel???
Top