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Post by mrlongbeard on Jul 12, 2007 15:56:59 GMT -4
no problem lifting the head keep every thing in order till the arrow hits. foc is fine. tried vanes, feathers, blazers. the blazers work best . but still I'm trying to tweak it a little. the guardian is design to eliminate the cam lean problem
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Post by mrlongbeard on Jul 16, 2007 10:19:21 GMT -4
got everything in working order. thanks for the suggestions.
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Post by dougell on Jul 16, 2007 11:32:17 GMT -4
I bought a Bowtech tribute these year after shooting mathews and Hoyts for the past 20 years.The grip on the Bowtech is alot thinner than the Mathews and it took me several weekes before I found the sweet spot where to put the grip in my hand.Every now and then I'd get a flier with some erratic flight but now it's perfect.
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Post by XMan on Jul 17, 2007 8:11:36 GMT -4
Just curious if your Field points are the exact same weight as your broadheads. A couple of grains here-or-there can cause your problem. Also try the opposite of what the tear shows. Try raising instead of lowering. May not be very much 1/16th or 1/32th something that minor may resolve your problem. Also check your arrows and make sure the broadheads are rotating in a straight line. I noticed over the years that if the end of your arrows aren't cut straight this can cause a mis-alignment of the broadheads and cause some weird arrow flight. Jeff gave some good advice just have to tinker with it sometimes.
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Post by jeffpahunter on Jul 17, 2007 10:38:22 GMT -4
Here's another thing I've discovered over the years when it comes to broadheads that many people fail to realize or understand.
Numerous times a person has come to me saying.."my broadheads seem to be flying fine but at 20 yds their hitting a bit lower and the further back I go the lower they seem to hit from from my field tips and nothing I do seems to help.
If so most likely this is why:... Although your broadheads and field tips MAY weigh exactly the same weight right down to the very last grain, you must remember that in most every case a broadhead's weight is distributed out over a longer distance and/or longer object.
A 100 grain Thunderhead is certainly about 4 times and maybe even more times longer than most 100 grain field tips.
This change/difference translates into a change into the finished arrows "balance point" and ultimately a slight change in it's FOC.
Easy way to check sometime is take your finished arrow with a field tip and lay it across another arrow shaft on a table until it balances with neither side hitting the table. When it balances mark the exact point at which the arrow balances. Now screw on your broadhead and repeat this process. You'll immediately see that your balance point has moved forward a good amount on the broadhead tipped arrow. The amount varies dependent upon design of broadhead, those broadheads more compact or shorter in overall length of design have less variance.
What happens when you take a projectile such as an arrow and make it heavier in the nose ? It drops faster,..and especially over longer distances.
This is precisely why Easton made their special target points (match points I believe they're called) a few years back that are longer and look like a broadhead with out blades, to match the FOC, weight distribution and balance of that with broadheads.
Just something I thought I'd share.
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Post by mrlongbeard on Jul 17, 2007 11:29:01 GMT -4
i know what the foc is and check all my arrows. what have you found is the best foc percentage that works for you. my current setup is right at 10%.
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Post by jeffpahunter on Jul 17, 2007 12:55:01 GMT -4
Personally I feel 10% is borderline light. I prefer in the 12-14% range myself but that's just me.
Keep in mind that in reality the broadhead steers the arrow and the fletching just stabilizes it. Get too light a FOC and they CAN be fighting each other. Set up's like this CAN be somewhat unforgiving and susceptible to flaws in form and grip etc., not always but can be. Everyone is different as are bows, some can get away with it.
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Post by mrlongbeard on Jul 17, 2007 13:06:48 GMT -4
any ideas on how to add foc. this setup now is with feathers and 100 grain broadheads.
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Post by jeffpahunter on Jul 17, 2007 15:17:23 GMT -4
Simplest way is by increasing your point weight to 125 grains. There's some handy calculator's that I like to use found on this site. They have calculators for all sorts of things, one of which is to plug in various arrow components etc. and you can get finished arrow weight, KE ratings, FOC etc home.att.net/~sajackson/archery.html
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Post by mrlongbeard on Jul 17, 2007 15:19:27 GMT -4
will try it out buddy thanks. will let you know how it works out. found out my foc is only 9.7%. going to switch to 125 broadheads it works out to 11.9%. will let you know how it goes. tried that site out jeff . it's great for getting the info you need.
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Post by dougell on Jul 19, 2007 14:31:16 GMT -4
You can also change the length of your arrow a little but that will also change the spine.then again,so will changing the weight of the broadhead.
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Post by jeffpahunter on Jul 19, 2007 16:04:57 GMT -4
Very true dougell but ideally for shooting broadheads your arrow should be no longer than 1" past your rest as a general rule of thumb.
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Post by mrlongbeard on Jul 19, 2007 16:36:18 GMT -4
i agree my arrows are 1 inch longer my draw is 30 but i use a string loop and with the release i'm down to 29. and the rest i use is set back form the shelf almost like a small over draw. making my arrows 29 inchs. may pick up some carbon express arrows with the foc setup might get the foc i'm looking for.
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