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The TAC 15/15i Review Article is here
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<blockquote data-quote="Twanger" data-source="post: 624196" data-attributes="member: 43393"><p>I probably should have mentioned that using this BC (0.065) that it's then possible to play some what-of games about where you should zero your crossbow without actually having to spend a lot of time at the range figuring it out. After you pick something, then you can verify it at the range.</p><p></p><p>I've been wonder if I should zero at 20, 25, 30, or 35 yards?</p><p>Here's the result from the ballistic calculator:</p><p></p><p>Zero Max Error @ Range</p><p>20 yd -1.1" 5-25 yd</p><p>25 yd -1.5 0-30 yd</p><p>30 yd +1.9/-1.9 0-35 yd</p><p>35 yd +2.9/-2.2 0-40 yd</p><p></p><p>So for hunting deer you might zero at 25 yds, knowing you can hold pretty-much right on out to 30 yards, and your arrow will fall within 1.5" of point of aim.</p><p></p><p>For Elk, with a bigger KZ, you might zero for 35 yards and be able to hold dead-on out to 40 yards.</p><p></p><p>Armed with these predictions, a little range-time should easily validate the assumptions.</p><p></p><p>I've been toying with zeroing at 30, but know that a lot of people on this sight start at 20. That's where I currently am.</p></blockquote><p></p>
[QUOTE="Twanger, post: 624196, member: 43393"] I probably should have mentioned that using this BC (0.065) that it's then possible to play some what-of games about where you should zero your crossbow without actually having to spend a lot of time at the range figuring it out. After you pick something, then you can verify it at the range. I've been wonder if I should zero at 20, 25, 30, or 35 yards? Here's the result from the ballistic calculator: Zero Max Error @ Range 20 yd -1.1" 5-25 yd 25 yd -1.5 0-30 yd 30 yd +1.9/-1.9 0-35 yd 35 yd +2.9/-2.2 0-40 yd So for hunting deer you might zero at 25 yds, knowing you can hold pretty-much right on out to 30 yards, and your arrow will fall within 1.5" of point of aim. For Elk, with a bigger KZ, you might zero for 35 yards and be able to hold dead-on out to 40 yards. Armed with these predictions, a little range-time should easily validate the assumptions. I've been toying with zeroing at 30, but know that a lot of people on this sight start at 20. That's where I currently am. [/QUOTE]
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The TAC 15/15i Review Article is here
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