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Long Range Hunting & Shooting
Barrel break in accuracy
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<blockquote data-quote="Teri Anne" data-source="post: 2460117" data-attributes="member: 118816"><p>Each barrel has its own individual character. Some will shoot sub MOA out of the box, other will need some coaxing and playing around to break them in and find their temperment. I have a Browning 300WM that took almost 200 rounds to settle from 3 1/2 inch groups to 0.6 MOA. One very important thing to watch for is copper fouling. Freshly cut rifling has a tendency to be a bit on the rough side and shaves off a lot of copper with each shot. Shoot 20 rounds and do a complete bore cleaning to include copper fouling removal. Eventually the rifling will smooth out and accuracy will improve. If you do not see a marked improvement after 150 or so rounds its best to contact Hart and see if they have any insight into the issue.</p></blockquote><p></p>
[QUOTE="Teri Anne, post: 2460117, member: 118816"] Each barrel has its own individual character. Some will shoot sub MOA out of the box, other will need some coaxing and playing around to break them in and find their temperment. I have a Browning 300WM that took almost 200 rounds to settle from 3 1/2 inch groups to 0.6 MOA. One very important thing to watch for is copper fouling. Freshly cut rifling has a tendency to be a bit on the rough side and shaves off a lot of copper with each shot. Shoot 20 rounds and do a complete bore cleaning to include copper fouling removal. Eventually the rifling will smooth out and accuracy will improve. If you do not see a marked improvement after 150 or so rounds its best to contact Hart and see if they have any insight into the issue. [/QUOTE]
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Barrel break in accuracy
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