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Long Range Hunting & Shooting
how can l notice barrel wear?
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<blockquote data-quote="liltank" data-source="post: 391141" data-attributes="member: 13275"><p>Well, I'm thinking the number of rounds can actually be up toward 2000 to 2500rnds considering you shoot factory loads. They are a little lighter than what a hand loader might use. As far as barrel wear, you really need a bore scope. This instrument allows you to look inside with a lighted telescope. You want to look from the breech end and look for deterioration in the throat due to heat. It should looked burned and frayed instead of clean machining. Another thing to look for is heat cracking. It looks like fish scales starting from the throat up through the barrel. Sometimes this can be cut off, and rechambered. It will shorten you barrel considerably though. </p><p></p><p>I noticed that mine would not hold groupings with loads that worked well at certain temperatures. 40 degrees would be great. Add 10 degrees and the group would fall apart. I would adjust the load and it would shoot good again. Take 10 degrees or add another 10 degrees and the group would fall apart. Took it to the smith and he found the fire cracking. Hope this helps.</p><p></p><p>Tank</p></blockquote><p></p>
[QUOTE="liltank, post: 391141, member: 13275"] Well, I'm thinking the number of rounds can actually be up toward 2000 to 2500rnds considering you shoot factory loads. They are a little lighter than what a hand loader might use. As far as barrel wear, you really need a bore scope. This instrument allows you to look inside with a lighted telescope. You want to look from the breech end and look for deterioration in the throat due to heat. It should looked burned and frayed instead of clean machining. Another thing to look for is heat cracking. It looks like fish scales starting from the throat up through the barrel. Sometimes this can be cut off, and rechambered. It will shorten you barrel considerably though. I noticed that mine would not hold groupings with loads that worked well at certain temperatures. 40 degrees would be great. Add 10 degrees and the group would fall apart. I would adjust the load and it would shoot good again. Take 10 degrees or add another 10 degrees and the group would fall apart. Took it to the smith and he found the fire cracking. Hope this helps. Tank [/QUOTE]
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how can l notice barrel wear?
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