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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Copper fouling location in barrel
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<blockquote data-quote="Tac-O" data-source="post: 2280097" data-attributes="member: 109994"><p>Well, maybe this barrel and Speer HC shoots best when loaded with copper. I shot 30 today and the lands are coated nearly solid with copper for the last half of the barrel. Not in the grooves though, like the interlock did. Seemingly no change in fouling after the TMS bullets except maybe it doesn't look quite as gloopy. </p><p></p><p>I loaded the best seating depth hot cor load today, rather than try to continue development on a clean barrel and chase my tail, to see if it got better as fouling increased. </p><p></p><p>30 rounds</p><p>Virgin Peterson brass</p><p>56.5gr h4350</p><p>Cci200</p><p>Speer hc 180gr ~0.020" off lands </p><p>2861 fps avg</p><p>9 SD </p><p>20 ES</p><p></p><p>There were a several fliers 1.5" away in the first 20 rounds and then the last 10 were acceptable. I used a new rear rest that took some time to get the stability during trigger break figured out, so I had some definite misses in the first 15 shots that screw with my overall results. But, given the last 10 shots, this will do for hunting. I'm going to just do a light clean on the bore and chamber with hoppes and see how far it will go before copper buildup becomes a problem. </p><p></p><p>[ATTACH=full]296169[/ATTACH]</p></blockquote><p></p>
[QUOTE="Tac-O, post: 2280097, member: 109994"] Well, maybe this barrel and Speer HC shoots best when loaded with copper. I shot 30 today and the lands are coated nearly solid with copper for the last half of the barrel. Not in the grooves though, like the interlock did. Seemingly no change in fouling after the TMS bullets except maybe it doesn't look quite as gloopy. I loaded the best seating depth hot cor load today, rather than try to continue development on a clean barrel and chase my tail, to see if it got better as fouling increased. 30 rounds Virgin Peterson brass 56.5gr h4350 Cci200 Speer hc 180gr ~0.020" off lands 2861 fps avg 9 SD 20 ES There were a several fliers 1.5" away in the first 20 rounds and then the last 10 were acceptable. I used a new rear rest that took some time to get the stability during trigger break figured out, so I had some definite misses in the first 15 shots that screw with my overall results. But, given the last 10 shots, this will do for hunting. I'm going to just do a light clean on the bore and chamber with hoppes and see how far it will go before copper buildup becomes a problem. [ATTACH type="full"]296169[/ATTACH] [/QUOTE]
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Copper fouling location in barrel
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