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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cleaning
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<blockquote data-quote="Mysticplayer" data-source="post: 23588" data-attributes="member: 8947"><p>Monte, Sounds like you have a real fouler on your hands. Have you checked the bedding and scope mount/bases? May as well eliminate any obvious problems.</p><p></p><p>In general, barrels get more stable over time until they are worn out. So am a little surprised that you are seeing such swings.</p><p></p><p>What type of powder are you using? One of the best for 308 is Varget. Burns very clean too. Have a look down the tube after you have shot your 20 plus rounds and see if you can any areas of heavier fouling or constriction. If that is the case you may want to consider hand lapping or fire lapping the barrel.</p><p></p><p>A 308 barrel should be able to digest over 100rds without ill effect. Of course, every barrel is different. Are you getting a lot of copper fouling? How is the throat area before you clean - any visible deposits?</p><p></p><p>I have used JB for a long time and have seen no ill effects from continued use. It is hard to imagine something like toothpaste wearing out steel in your lifetime. Try getting some "red" JB which is their lapping compound. Smoothing the barrel and throat will help with consistency of a barrel. Reduces fouling too.</p><p></p><p>Since your rifle now likes lighter bullets, I would recommend the 155gr Amax. I love this bullet and it flies so much flatter then the 165/168 from many companies.</p><p></p><p>Good luck...</p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 23588, member: 8947"] Monte, Sounds like you have a real fouler on your hands. Have you checked the bedding and scope mount/bases? May as well eliminate any obvious problems. In general, barrels get more stable over time until they are worn out. So am a little surprised that you are seeing such swings. What type of powder are you using? One of the best for 308 is Varget. Burns very clean too. Have a look down the tube after you have shot your 20 plus rounds and see if you can any areas of heavier fouling or constriction. If that is the case you may want to consider hand lapping or fire lapping the barrel. A 308 barrel should be able to digest over 100rds without ill effect. Of course, every barrel is different. Are you getting a lot of copper fouling? How is the throat area before you clean - any visible deposits? I have used JB for a long time and have seen no ill effects from continued use. It is hard to imagine something like toothpaste wearing out steel in your lifetime. Try getting some "red" JB which is their lapping compound. Smoothing the barrel and throat will help with consistency of a barrel. Reduces fouling too. Since your rifle now likes lighter bullets, I would recommend the 155gr Amax. I love this bullet and it flies so much flatter then the 165/168 from many companies. Good luck... Jerry [/QUOTE]
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