Arrow and broad head weight

[Eburg fisher]

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!

[konrad]

http://www.eastonarchery.com/products/selection

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

[bowhuntin]

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.

[belkaholic]

at 30 in draw and 70# PULL you will have plenty of speed and powerno matter what arrow you shoot. regardless though, it  will probley be on the heavier side. because of this i would go with a 125gr broadhead. i found that the more wait up front made it easyer to toon and more consistant.

[Eburg fisher]

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.

[norsepeak]

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 

[Eburg fisher]

I just went on the Easton site and checked the shaft selector. For my specs it said the 340 for the Axis arrow so that's what I went with.

[xXx Archery]

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 

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

[konrad]

While it is true a heavier arrow not always provides more kinetic energy, it is also true that an arrow with more kinetic energy does NOT always penetrate as far as a heavy shaft. The mathematical formulae do not always predict performance.

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.

[ridgefire]

i second what konrad said i would recommend going with a heavier arrow for better penetration especially at further distances

[Jake T]

i get leary about kenetic energy.  if you put in all of the specifics for a .22 round into a KE calculator you get enough energy to take down a water buffalo.  you don't see many rim fires out in the savanah.  all i'm trying to say is be wary of anyone who is spouting that KE is the only thing that matters.

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.

[ridgefire]

the latest ebj had a article about arrow weights and what not you could probably find it on their website they also have a formula for momentum

[Eburg fisher]

OK, so what should I have gone with?

[konrad]

If your shaft is 30 inches long (throat of nock to end of insert) and you are drawing 70 pounds and it is a "hard" cam bow, Easton Technical suggests a 300 spine.

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

[let.it.fly]

i'm running the beaman micro diameter team realtree, total arrow weight 455 grn. crono'd at 265, that combo with slicktricks blew a fist size hole through both sides of my deer this and still managed to burry my arrow well past the BH in a hardwood tree behind the deer. speed is defenetly no a nicesity. it is one of the last things i worry about. if your worried about a deer ducking an arrow, just wait until its not paying attention or on allert

[bonkellekter]

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