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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet choices for 300 RUM
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<blockquote data-quote="MontanaRifleman" data-source="post: 336948" data-attributes="member: 11717"><p>Jon,</p><p> </p><p>I agree, for many of the reasons you state, that drop testing is not the most accurate method of BC verification, but I think it can give us a good estimate. I'll have to disagree that a .1 dif in BC only equates to 3 inches dif in drop at 960 yds. In runnig the numbers of Steve's ballistics, a .1 dif in BC (.52 vs .62) equates to an 11" dif in drop. One drop test is not necessarily conclusive, but consistant results are relaible Not saying we have consistant results yet, but they seem to be working for Steve.</p><p> </p><p>Next, the 177's are totally different animal than the 173's. And the new 177's are an improvement over the old 177's, which even Bryan Litz commented on. Better boattail design, longer narrower nose, front driving band incorprated into the ogive. It's a sweet looking bullet, and I will readily say, much better than anything being currently offered in the 308. So I remain optimistic...</p><p> </p><p>Naively yours, <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>Mark</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 336948, member: 11717"] Jon, I agree, for many of the reasons you state, that drop testing is not the most accurate method of BC verification, but I think it can give us a good estimate. I'll have to disagree that a .1 dif in BC only equates to 3 inches dif in drop at 960 yds. In runnig the numbers of Steve's ballistics, a .1 dif in BC (.52 vs .62) equates to an 11" dif in drop. One drop test is not necessarily conclusive, but consistant results are relaible Not saying we have consistant results yet, but they seem to be working for Steve. Next, the 177's are totally different animal than the 173's. And the new 177's are an improvement over the old 177's, which even Bryan Litz commented on. Better boattail design, longer narrower nose, front driving band incorprated into the ogive. It's a sweet looking bullet, and I will readily say, much better than anything being currently offered in the 308. So I remain optimistic... Naively yours, :) Mark [/QUOTE]
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