Post by: Eburg fisher on January 18, 2010, 05:32:07 PM
Post by: konrad on January 18, 2010, 05:48:30 PM
I am an Easton Technical BELEIVER.
Plug your numbers into the calculator and the program will tell you what shaft you need.
Before you buy anything, verify your bow is set to your actual draw length using the release you plan to use. Typically, your shaft (measured from throat of nock to bottom of insert) will be about two inches longer than your draw length.
Bear Archery products have very good "back walls" to pull lightly against to verify you are at your draw length anchor point.
The temptation is to over-draw the bow in order to get maximum arrow velocity. You are already at 70 pounds and more than enought for moose.
A relaxed, repeatable comfortable draw length is MUCH better than an erratic, stretched anchor.
Once you have the bow set to your draw length, then you will know your minimum arrow length.
Hope this helps.
KL
Post by: bowhuntin on January 18, 2010, 08:42:14 PM
I am new to bowhunting. Picked up a Bear Lights out and am looking to complete my setup. It's set at 70 pounds and 30" draw. What weight arrow and broadhead weight should I use? I see some manufacturers are specific to length and draw weight and others just draw weight. I plan on using Eastman N-fused or Gold Tip carbon arrows. Thanks fo rthe help!
Using easton's arrow selection chart you would need N-fused 300s and you would be fine using 100 or 125 grain broadheads for that setup with a 31 inch arrow.
Post by: belkaholic on January 23, 2010, 11:40:53 PM
Post by: Eburg fisher on January 24, 2010, 06:18:18 PM
Post by: norsepeak on January 24, 2010, 08:54:47 PM
Post by: Eburg fisher on January 24, 2010, 09:09:20 PM
Post by: xXx Archery on January 24, 2010, 09:25:02 PM
Personally I like to be on the heavier side for the Ke, and I don't mind the sacrifice of speed, because usually fixed three blade broadheads don't fly well faster than 280 fps. So I like to go as heavy of arrow I can and maintain 280 fps. Just my :twocents:
going heavier does not allways give you more KE
on a bow with a IBO speed rating of 330 29" draw set at 70lbs
Total Arrow Weight: 460
Bow IBO Speed: 330
Adjustment for Draw Length: -10
Adjustment for Draw Weight: 0
Adjustment for Arrow Weight: -37
Adjustment for Weight on String: -3
Calculated Speed: 280 fps
Kinetic Energy: 80.1
and now with a lighter arrow
Total Arrow Weight: 420
Bow IBO Speed: 330
Adjustment for Draw Length: -10
Adjustment for Draw Weight: 0
Adjustment for Arrow Weight: -23
Adjustment for Weight on String: -3
Calculated Speed: 294 fps
Kinetic Energy: 80.63
so you gained 14fps and .53 KE
Post by: konrad on January 25, 2010, 07:01:26 PM
Pentration is affected (be it positively or negatively) by many factors including but not limited to:
blade shape, blade configuration, shaft/head ferrule relative sizes, shaft spine, shaft diameter, weight forward of center balance and efficiency of flight.
All things being equal, I lean toward a stiff, heavier shaft launched as accurately as possible.
Post by: ridgefire on January 27, 2010, 07:47:58 PM
Post by: Jake T on January 28, 2010, 06:59:21 PM
in case it comes across that way...i'm not trying to take any shots at anybody that posted. i'm just saying that KE numbers have to be taken into consideration with the whole set up, not as a stand alone.
Post by: ridgefire on January 28, 2010, 07:29:10 PM
Post by: Eburg fisher on January 28, 2010, 07:46:35 PM
Post by: konrad on January 28, 2010, 09:28:00 PM
Draw length and arrow length are not the same. Arrow length is usually longer. The calculator uses actual arrow length.
I'm thinking the Epic would do you well or the 2514 Super Slam XX78 alloy shaft for a little more weight and momentum. Easton warranties the spine and straightness of their SS shafts for two years (read the web-site for details).
The above was calculated using a 100 grain point.
I hope this helps!
KL
Post by: let.it.fly on January 29, 2010, 07:11:39 AM
Post by: bonkellekter on January 29, 2010, 04:23:28 PM
OK, so what should I have gone with?
I ran your numbers thru an arrow selection software and with your setup (
I ended up going with the Easton Axis in 340 cut to 29.5" and for now the draw weight is set at 65 pounds. Using 100g field tips. So far so good.) the arrows you picked are perfect. But if you decide to bump up to 70 lbs in the future your arrow spine will be too weak