Figuring out arrow weight
07-15-2007, 02:22 PM
#1
Fork Horn
Thread Starter
Join Date: Dec 2005
Location:
Posts: 312
Figuring out arrow weight
What do you guys do to figure out arrow weight? Say if i wanted to buy a Beman ICS hunter arrow which is at 8.4 grains per inch and i want it trimed down to 27 inches. I assume you multiply 8.4 times 27 and get 227 then add 100 for the field point to get 327. How much would i add to 327for blazer vanes and a nock point to find my total arrow weight?
07-15-2007, 02:34 PM
#2
Nontypical Buck
Join Date: Nov 2004
Location: The Bay which is Green, WI
Posts: 1,275
RE: Figuring out arrow weight
Well, 2 inchers weigh 5 grains a piece and 4 inchers weigh 12 grains a piece. I assume you are shooting stock nocks so they should weigh 7-12 grains. This gives you a grand total of about 394-399 with 2 inch vanes and 415-420 with 4's. Sorry I couldn't find the exact weight for the beeman nocks.
07-15-2007, 02:37 PM
#3
Giant Nontypical
Join Date: Feb 2003
Location: Burleson TX USA
Posts: 6,455
RE: Figuring out arrow weight
I would be more concerned about the spine than total arrow weight.
If you like I can run your set up through Archers Advantage but will need the bow info ie draw weight, your draw lenght, make model etc
If you like I can run your set up through Archers Advantage but will need the bow info ie draw weight, your draw lenght, make model etc
07-15-2007, 02:45 PM
#4
Fork Horn
Thread Starter
Join Date: Dec 2005
Location:
Posts: 312
RE: Figuring out arrow weight
ORIGINAL: Ausie-guy
I would be more concerned about the spine than total arrow weight.
If you like I can run your set up through Archers Advantage but will need the bow info ie draw weight, your draw lenght, make model etc
I would be more concerned about the spine than total arrow weight.
If you like I can run your set up through Archers Advantage but will need the bow info ie draw weight, your draw lenght, make model etc
Hope thats enough
07-15-2007, 03:17 PM
#6
Giant Nontypical
Join Date: Feb 2003
Location: Burleson TX USA
Posts: 6,455
RE: Figuring out arrow weight
OK AA came up with a finished weight of 371gr's using the 2" Blazers the FOC is 13.6 but the spine is all the way over into the red on the stiff side.
Even with a 125 head it is still showing as too stiff.
Now with the lenght cut to 29" 100gr head it is showing slightly stiff, 388gr's with a FOC of 12.9
Now if you want to get the FOC up there go with a 200 gr head cut the arrow at 28" for a total weight of 479gr and a FOC of 21.1 and slightly stiff on the spine, I would prefer to be slightly stiff than slightly weak when it comes to spine.
Even with a 125 head it is still showing as too stiff.
Now with the lenght cut to 29" 100gr head it is showing slightly stiff, 388gr's with a FOC of 12.9
Now if you want to get the FOC up there go with a 200 gr head cut the arrow at 28" for a total weight of 479gr and a FOC of 21.1 and slightly stiff on the spine, I would prefer to be slightly stiff than slightly weak when it comes to spine.
07-15-2007, 03:39 PM
#7
Fork Horn
Thread Starter
Join Date: Dec 2005
Location:
Posts: 312
RE: Figuring out arrow weight
Thanks a lot Ausie! One more question though. If my spine is to stiff should i think about getting Beman ICS 340 over the 400? The 340 comes in at 9.3 grains per inch with the 400 at 8.4.
Thanks
Thanks