Monday, March 01, 2010

New Longbow




64.5" reflex-deflex longbow, 42 lbs @ 28". Looks like a good performer. I shot a 405-410 grain Vapor 2000 carbon arrow (30", 145 grain tip) through the chronograph and got about 145-150 feet per second. These are the same arrows I put through the 48 lb @ 28" Chek-Mate Crusader and peak about 150-151 fps. I now need to find arrows properly spined for this low poundage bow because the Vapor 2000 shafts are too stiff (about 0.535). I'm guessing that I'll need at least a 0.600 spine or even a 0.700 spine and try to have the arrow weigh around 300 grains. Minimum arrow weight by my estimate is about 280 grains -- assuming I get 35 lbs at full draw and 8 grains per pound of draw minimum. I'd rather have a bit of extra fudge space, so 300 or so grains should do. Now to find a decent, affordable shaft that spines low enough! Thankfully, my arrows for IKAC / Royal Rounds are slightly weak for this bow, so until I can find some carbons or aluminums (preferably X7 alloy), I have some heavy logs to shoot and they do group pretty well out to about 25-30 yards!

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