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Rifles, Reloading, Optics, Equipment
Reloading
Project 7 LR
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<blockquote data-quote="Shadow292" data-source="post: 2257490" data-attributes="member: 119472"><p>26in 416R 1:9 </p><p>I didnt experience the feed resistance of the carbon ring till I throated it.</p><p>But I'd shot 300 or so magpro rounds out of it prior to the throat reaming.</p><p>So I'm not sure if it accumulated through that whole time or started right after I throated it. I didnt know about carbon rings till I learned it the hard way.</p><p>So I bought a bore scope and cleaned it out 100% clean steel. Then loaded 40 rounds all with magpro and got through about 20 of them and the carbon fouling in the throat was back to the point I was jamming the rounds into battery again. I got home and cleaned it again and that's where I'm at now.</p><p>I'm leaning towards the bullet only occupying the neck of the case to being the issue like the charge goes off and the bullet is instantly clear of the case before the powder case fully ignite resulting in the throat acting as part of the case for the burning to take place if that makes any sense. If that is what's happening and I can delay the bullet leaving the neck just a bit by either seating it deeper....which was the purpose of throating it in the first place.....or increasing neck tension which may or may not make enough of a difference in this case.</p><p>The worst case scenario is changing powders and starting from scratch.</p><p>But I'm getting excellent velocity with the magpro and I have a bunch of it.</p><p>So I want to eliminate all other possibilities before moving to a different powder</p></blockquote><p></p>
[QUOTE="Shadow292, post: 2257490, member: 119472"] 26in 416R 1:9 I didnt experience the feed resistance of the carbon ring till I throated it. But I'd shot 300 or so magpro rounds out of it prior to the throat reaming. So I'm not sure if it accumulated through that whole time or started right after I throated it. I didnt know about carbon rings till I learned it the hard way. So I bought a bore scope and cleaned it out 100% clean steel. Then loaded 40 rounds all with magpro and got through about 20 of them and the carbon fouling in the throat was back to the point I was jamming the rounds into battery again. I got home and cleaned it again and that's where I'm at now. I'm leaning towards the bullet only occupying the neck of the case to being the issue like the charge goes off and the bullet is instantly clear of the case before the powder case fully ignite resulting in the throat acting as part of the case for the burning to take place if that makes any sense. If that is what's happening and I can delay the bullet leaving the neck just a bit by either seating it deeper....which was the purpose of throating it in the first place.....or increasing neck tension which may or may not make enough of a difference in this case. The worst case scenario is changing powders and starting from scratch. But I'm getting excellent velocity with the magpro and I have a bunch of it. So I want to eliminate all other possibilities before moving to a different powder [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Project 7 LR
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