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Long Range Hunting & Shooting
Lapped with JB test
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<blockquote data-quote="Jud96" data-source="post: 1896684" data-attributes="member: 69478"><p>You're doing more harm than good. Is this barrel copper fouling bad? Just shoot the thing and see if it speeds up. Some barrels take more than others to speed up. Are you loading a max load and seeing pressure and getting slow speeds? Just because someone else got 3000 with the same powder charge or your old barrel was faster doesn't mean you'll have the same results. Slow barrels are a real thing, but trying to lap it yourself to speed it up isn't going to significantly help. My cousin has a 300 WSM and 2830FPS is what we got with around 68gr of RL26 and a 208gr ELD. I don't think your results are that far off what should be expected.</p><p></p><p>I'm sure I'll get some opposition, but lapping a barrel can harm it if you don't have the proper tools or know the proper techniques to do so. The crown and throat/chamber would be the major things I would worry about damaging when trying to lap a barrel that's already fitted and finished. I'm not trying to be negative, I just want to help prevent anymore problems from happening.</p></blockquote><p></p>
[QUOTE="Jud96, post: 1896684, member: 69478"] You’re doing more harm than good. Is this barrel copper fouling bad? Just shoot the thing and see if it speeds up. Some barrels take more than others to speed up. Are you loading a max load and seeing pressure and getting slow speeds? Just because someone else got 3000 with the same powder charge or your old barrel was faster doesn’t mean you’ll have the same results. Slow barrels are a real thing, but trying to lap it yourself to speed it up isn’t going to significantly help. My cousin has a 300 WSM and 2830FPS is what we got with around 68gr of RL26 and a 208gr ELD. I don’t think your results are that far off what should be expected. I’m sure I’ll get some opposition, but lapping a barrel can harm it if you don’t have the proper tools or know the proper techniques to do so. The crown and throat/chamber would be the major things I would worry about damaging when trying to lap a barrel that’s already fitted and finished. I’m not trying to be negative, I just want to help prevent anymore problems from happening. [/QUOTE]
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