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Long Range Hunting & Shooting
Anybody calculated AccuBond B.C?
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<blockquote data-quote="Michael Eichele" data-source="post: 170060" data-attributes="member: 1007"><p>Also please note:</p><p></p><p>It has been quite some time between experiments with the 2 different loads using the 200 AB's. When I tested the 200 AB with RL-25 my barrel was very new. Now I have exceeded 700 shots in this barrel and the 200 AB has not been used for most of that. For a 300 RUM that is about the usefull life. It has only been recently I have played with the 200 AB and H-50BMG. The BC now is quite a bit lower and could be due to a degraded barrel. My personal opinion is that the degraded barrel isnt enough to account for more than .100 of the BC (although I could be off base). Rather my opinion is that that much BC loss is due to both a degraded barrel and much different internal ballistics from powder charges and burn rates. Bear in mind this is ONLY my opinion. The fact remains that I have seen the 200 AB as high as .590 and as low as .459 even in the same barrel just different junctions in its life and in conjunction with different powders/charges.</p><p></p><p>I hope that makes sense.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 170060, member: 1007"] Also please note: It has been quite some time between experiments with the 2 different loads using the 200 AB's. When I tested the 200 AB with RL-25 my barrel was very new. Now I have exceeded 700 shots in this barrel and the 200 AB has not been used for most of that. For a 300 RUM that is about the usefull life. It has only been recently I have played with the 200 AB and H-50BMG. The BC now is quite a bit lower and could be due to a degraded barrel. My personal opinion is that the degraded barrel isnt enough to account for more than .100 of the BC (although I could be off base). Rather my opinion is that that much BC loss is due to both a degraded barrel and much different internal ballistics from powder charges and burn rates. Bear in mind this is ONLY my opinion. The fact remains that I have seen the 200 AB as high as .590 and as low as .459 even in the same barrel just different junctions in its life and in conjunction with different powders/charges. I hope that makes sense. [/QUOTE]
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Anybody calculated AccuBond B.C?
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