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Long Range Hunting & Shooting
6mm or 243AI?
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<blockquote data-quote="Varmint Hunter" data-source="post: 10366" data-attributes="member: 313"><p>Jake,</p><p></p><p>As I said in my previous post, by heavies I was refering to 70-80gr bullets and not to the 105-107 VLD bullets. My 12" twist was never intended to use them, as I preferred to use traditional "varmint" bullets. The VLD's always have an advantage with the wind due to their exceptionally high BC.</p><p></p><p>But to put some numbers on the comparison, here is what I got using moderately high velocity (but not max capable in the AI's)and calculated with a 10mph cross wind.</p><p></p><p>55gr B-Tip @4,000.....63" @750yds</p><p>80gr Sierra @ 3,300...67" @750yds</p><p>70gr B-Tip @ 3,600....61" @750yds</p><p></p><p>The little screamer 55gr B-Tip is very destructive on groundhogs and is as good or better than some others in the wind. It can also be shot quite a bit faster in many 6mmAI rifles but I tried to keep the comparison fair.</p><p></p><p>As for your Sierra 107's, I'm not sure what kind of terminal performance you get from these bullets but they sure do buck the wind. In my comparison the difference was not 16" @ 750yds, but 20". <img src="http://images/icons/shocked.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>Good shootin' - VH</p></blockquote><p></p>
[QUOTE="Varmint Hunter, post: 10366, member: 313"] Jake, As I said in my previous post, by heavies I was refering to 70-80gr bullets and not to the 105-107 VLD bullets. My 12" twist was never intended to use them, as I preferred to use traditional "varmint" bullets. The VLD's always have an advantage with the wind due to their exceptionally high BC. But to put some numbers on the comparison, here is what I got using moderately high velocity (but not max capable in the AI's)and calculated with a 10mph cross wind. 55gr B-Tip @4,000.....63" @750yds 80gr Sierra @ 3,300...67" @750yds 70gr B-Tip @ 3,600....61" @750yds The little screamer 55gr B-Tip is very destructive on groundhogs and is as good or better than some others in the wind. It can also be shot quite a bit faster in many 6mmAI rifles but I tried to keep the comparison fair. As for your Sierra 107's, I'm not sure what kind of terminal performance you get from these bullets but they sure do buck the wind. In my comparison the difference was not 16" @ 750yds, but 20". [img]images/icons/shocked.gif[/img] Good shootin' - VH [/QUOTE]
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