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TAC 15/15i Basic Unpublished Information
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<blockquote data-quote="jon.henry755" data-source="post: 490637" data-attributes="member: 29115"><p>Hi Konrad,</p><p>I was doing some minor testing recently and found that your previous information was absolutely accurate. </p><p></p><p>The exact weight of the PSE TAC 15 arrows is not 425 grains as stated by the manufacture. That's an even round number for advertising purposes. The actual weight varies shaft by shaft, but comes in at between 422.0 and 422.9 on the dozen that I was testing. </p><p></p><p>If we redo the calculations for grains per inch of arrow we come out with 3.22 which is way light for any known acceptable range. This explains why they fly so flat over longer distances, but also they likely are pushing way beyond the acceptable spine limitations even for carbon arrows. The amount of dynamic spine deflection during each shot must be incredible on these shafts and it's hard to believe the limbs are withstanding that type of force. It's almost like dry-firing the crossbow with that little weight on each shot. </p><p></p><p>I'm going to leave it to Super 91 to add or fill in more details when he has time to reply, since he has most of the information. </p><p></p><p>Jon</p></blockquote><p></p>
[QUOTE="jon.henry755, post: 490637, member: 29115"] Hi Konrad, I was doing some minor testing recently and found that your previous information was absolutely accurate. The exact weight of the PSE TAC 15 arrows is not 425 grains as stated by the manufacture. That's an even round number for advertising purposes. The actual weight varies shaft by shaft, but comes in at between 422.0 and 422.9 on the dozen that I was testing. If we redo the calculations for grains per inch of arrow we come out with 3.22 which is way light for any known acceptable range. This explains why they fly so flat over longer distances, but also they likely are pushing way beyond the acceptable spine limitations even for carbon arrows. The amount of dynamic spine deflection during each shot must be incredible on these shafts and it's hard to believe the limbs are withstanding that type of force. It's almost like dry-firing the crossbow with that little weight on each shot. I'm going to leave it to Super 91 to add or fill in more details when he has time to reply, since he has most of the information. Jon [/QUOTE]
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TAC 15/15i Basic Unpublished Information
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