Ethan Givan Posted July 29, 2009 Report Share Posted July 29, 2009 Ok so I was over at a buddy's house the other day shooting bows and he was looking at my arrows and he said that mine were too light. He said that I was running the risk of not having good penetration especially if the shot angle wasnt perfect. His dad agreed with him. I think they are wrong. So i decided to get a second opinion from you guys. My arrows weigh 362 grains with the tip. Im shooting 68 lb draw weight. I havnt shot through a chrono before but according to an online arrow speed calculator im getting about 270 fps. Im shooting NAP thunderhead broadheads too. So are they too light? I personally feel confident that they will preform fine on deer and allow plenty of penetration but I havnt shot a deer with this set-up yet.Thanks for any input Quote Link to comment Share on other sites More sharing options...
Gator Posted July 29, 2009 Report Share Posted July 29, 2009 Nope, I don't think so, not for deer. Heck I shoot 350gr arrows at 65lbs. That's about what I shot since I been hunting, and have gotten pass throughs on all deer I shot Quote Link to comment Share on other sites More sharing options...
Double Drops Posted July 29, 2009 Report Share Posted July 29, 2009 What kind of arrow are you using? That's a little light for a hunting arrow, but not too light. You should be ok. Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 29, 2009 Author Report Share Posted July 29, 2009 What kind of arrow are you using? That's a little light for a hunting arrow, but not too light. You should be ok. Im shooting Gold tip 5575s, 29 inches long with 85 grain tips. Quote Link to comment Share on other sites More sharing options...
Gator Posted July 29, 2009 Report Share Posted July 29, 2009 If they fly good, don't worry about it, that would be my main concern. Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 29, 2009 Author Report Share Posted July 29, 2009 If they fly good, don't worry about it, that would be my main concern. They fly like darts. I like them. Quote Link to comment Share on other sites More sharing options...
hutchies Posted July 29, 2009 Report Share Posted July 29, 2009 (edited) I've put Goldtip XT's with 100 grain tips thru 10 deer in the last 3 years with no problems. Mine weigh about 360 grains total weight and I've been shooting between 250 fps and 280 and never had a problem Edited July 29, 2009 by hutchies Quote Link to comment Share on other sites More sharing options...
sskybnd Posted July 30, 2009 Report Share Posted July 30, 2009 i dont know what a to light of arrow is, mine only weights total with a 100 grain muzzy is 268 grains, and am shooting 68lbs and the arrow is flying at 297fps i figure a sharp breod head and a lethal shot, i hope will be fine, but like you this is my first time hunting with this set up and havent shot any deer. Quote Link to comment Share on other sites More sharing options...
m gardner Posted July 30, 2009 Report Share Posted July 30, 2009 I shoot a 29 inch 365 grain arrow including tip and I put a mechanical (NAP Shockwave) clean through a deer last year from a 58 pound bow. The same arrow with a G5 Montech went through another. I wouldn't worry as long as they shoot well. Mark Quote Link to comment Share on other sites More sharing options...
stcif Posted July 30, 2009 Report Share Posted July 30, 2009 Light and fast is fine with perfect shot placement. Anything less than perfect will pose a problem in my opinion. Once again this is all covered by Dr. Ed Ashby. I has happened to me and many, many others and I see poor penetration on hunting shows every day. The arrows zip through the ribs but hit a shoulder and there is the problem. Here is one of Dr. Ashby's quotes: Given two arrows of equal momentum, but with one deriving a greater portion of its momentum from mass than the other, the heavier arrow will change velocity (decelerate) at a slower rate as it passes through the tissues. In other words, the heavier arrow will retain a higher percentage of its impact velocity at any given time period during its passage through the animal’s tissues, thus it also retains a higher momentum at any given point during the time required for the arrow to penetrate. Another way of saying this would be that, though the heavier arrow is traveling slower, it takes a longer time to stop. The result is that the heavier arrow will have a greater impulse of force than does the light arrow. Quote Link to comment Share on other sites More sharing options...
Doc Posted July 30, 2009 Report Share Posted July 30, 2009 I'm not a huge fan of super light arrows, but the most important concern is how they are flying. If they are hitting without any wobble, and you have good sharp broadheads, those two features are the most important factors in penetration. Much has been made of arrow weight when it comes to penetration, and yes heavier arrows do enhance penetration..........slightly. But that fact has been way over emphasized as far as it's magnitude of effect. In other words, it has been blown way out of proportion. So if the arrows are entering straight into the target, and flying accurately and are tipped with almost any of today's modern SHARP broadheads, That's really all you have to worry about. Anything else is just good conversation and nothing more. Doc Quote Link to comment Share on other sites More sharing options...
hunterwebb Posted July 30, 2009 Report Share Posted July 30, 2009 the bottom line is you got to get a pass through perfect shot placement or not if you shoot a deer and he run off with your arrow then you need to change most of the time it the broadhead that the problem Quote Link to comment Share on other sites More sharing options...
Bob LeBlanc Posted July 30, 2009 Report Share Posted July 30, 2009 I'd be more worried about your bow... 362 gr. at 68 #'s draw is 5.3 grains per pound of draw weight. Between 6 to 7 grains, minimum, is what the manufacturers typically warranty. With your arrow that light, chances are your bow is probably a bit noisier too. I shoot GT 5575's too, but with 125 Thunderheads...How does your arrow spine check out with that light of a broadhead?...If I recall, I can't drop below 100 gr. or the spine will be too stiff. For deer size (and smaller) critters, you're probably OK...marginal...but still OK. I don't think I'd be saying that if your gonna be tacklin' moose or elk, though. Bob Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 30, 2009 Author Report Share Posted July 30, 2009 I'd be more worried about your bow... 362 gr. at 68 #'s draw is 5.3 grains per pound of draw weight. Between 6 to 7 grains, minimum, is what the manufacturers typically warranty. With your arrow that light, chances are your bow is probably a bit noisier too. I shoot GT 5575's too, but with 125 Thunderheads...How does your arrow spine check out with that light of a broadhead?...If I recall, I can't drop below 100 gr. or the spine will be too stiff. For deer size (and smaller) critters, you're probably OK...marginal...but still OK. I don't think I'd be saying that if your gonna be tacklin' moose or elk, though. Bob Here is Gold Tip's arrow spine chart. Seems like Im ok according to it. http://www.huntersfriend.com/arrowhelp/gold-tip-arrow-spine-chart.htm I know its borderline too light but honestly I have never had a set up shoot better for me, so I think im gonna stick with it for this season. i will most likely move up to a 100 grain head for next year though. Quote Link to comment Share on other sites More sharing options...
Squirrelhunter91 Posted July 30, 2009 Report Share Posted July 30, 2009 Heck no. I shot a 354gr arrow out of my DXT last year at 27"/70lb and it plowed through both shoulders of a doe I shot. You're arrow weight and FOC are fine. Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 30, 2009 Author Report Share Posted July 30, 2009 Heck no. I shot a 354gr arrow out of my DXT last year at 27"/70lb and it plowed through both shoulders of a doe I shot. You're arrow weight and FOC are fine. Wow you were pushing the 5 grains per lb of draw weight. Im not that light at all. Quote Link to comment Share on other sites More sharing options...
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