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Rifles, Reloading, Optics, Equipment
Reloading
FinalFinish & FinalFinish TMS???
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<blockquote data-quote="etisll40" data-source="post: 677067" data-attributes="member: 15229"><p>Recently, I read an article on accuracy, rifling, heat and the throat area. I think it was off a site connected to the NRA, but not sure. This gunsmith/shooter shot one of his rifles out to around 10,000 rounds. I believe he had to cut the throat as the bore wore out essentially from the wear caused by heat. Anotherwords, the throat eroded and accuracy diminished, so he re-cut the throat and kept shooting the barrel. Around 10,000 rounds accuracy dropped below 1/2 MOA. So, time to scrap the barrel. He was testing the main issue of heat and throat erosion relative to accuracy. He then cut the barrel down the middle into 2 halves to check the rifling. There was no rifling left. Now, it didn't disappear at shot 9999! The gun was accurate until about 10,000 rounds.</p><p></p><p>Food for thought.</p><p></p><p>Moral of the story?</p></blockquote><p></p>
[QUOTE="etisll40, post: 677067, member: 15229"] Recently, I read an article on accuracy, rifling, heat and the throat area. I think it was off a site connected to the NRA, but not sure. This gunsmith/shooter shot one of his rifles out to around 10,000 rounds. I believe he had to cut the throat as the bore wore out essentially from the wear caused by heat. Anotherwords, the throat eroded and accuracy diminished, so he re-cut the throat and kept shooting the barrel. Around 10,000 rounds accuracy dropped below 1/2 MOA. So, time to scrap the barrel. He was testing the main issue of heat and throat erosion relative to accuracy. He then cut the barrel down the middle into 2 halves to check the rifling. There was no rifling left. Now, it didn't disappear at shot 9999! The gun was accurate until about 10,000 rounds. Food for thought. Moral of the story? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
FinalFinish & FinalFinish TMS???
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