Trad Gang

Main Boards => PowWow => Topic started by: JimB on October 24, 2011, 08:20:00 PM

Title: How Many GPP
Post by: JimB on October 24, 2011, 08:20:00 PM
What is your favorite arrow weight for hunting,measured in grains per pound of bow weight(GPP).Please no debate,it's just a poll to see what you like.
Title: Re: How Many GPP
Post by: stujay on October 25, 2011, 12:24:00 AM
Mine is 11 GPP
Title: Re: How Many GPP
Post by: Bjorn on October 25, 2011, 12:41:00 AM
I don't remember a poll like this before-good idea!
Title: Re: How Many GPP
Post by: Thumper Dunker on October 25, 2011, 01:30:00 AM
Cool stuff.
Title: Re: How Many GPP
Post by: cacciatore on October 25, 2011, 08:18:00 AM
For smaller animal and open terrain I use 9 GPP,for elk,boar,bear 11. If I have to choose a single weight is around 11.
Title: Re: How Many GPP
Post by: Javi on October 25, 2011, 08:29:00 AM
I only shoot wood so I like 12/13 with 16% / 20% FOC
Title: Re: How Many GPP
Post by: Zradix on October 25, 2011, 08:45:00 AM
I'm at 12.57g/#, 47#, 591 grains, 17.65 FOC
Title: Re: How Many GPP
Post by: Friend on October 25, 2011, 09:23:00 AM
Do to my disdain for applying 10 gpp as a general guideline, I am hesitant to vote.
The general 10 gpp guide line today is possibly an all around great choice for further ensuring possibly greater efficiency, enhanced safety for the bow and the user itself. Of course there are exceptions. I firmly believe the gpp guideline evolved from an era in the years when higher poundage bows were the norm.
Just concerned that the poll results could negatively promote using gpp arrows that do not take into account the all important factors of draw wt, arrow design, intended game and having over-all set-ups designed for the unexpected vs. requiring a virtual perfect mark. The results so far contradict the useage of low gpp of which I am well pleased and feel more secure for both the protection and longevity of our traditional community and the beloved animals we pursue.

For deer sized game:
Draw wt. - Mid to Low 50's
Over-all efficient arrow design(~30% Ultra-EFOC)

I choose the 10 - 11 gpp range
Title: Re: How Many GPP
Post by: Stumpkiller on October 25, 2011, 09:36:00 AM
Mine worked out to 11.2 gpp, but that's just coincedence.  I shoot Douglas fir, 12" rear taper and 130 gr broadheads with 1/2" knuckle/riser clearance at full draw.  No idea what the FOC works out to and gpp is secondary to good flight and good penetration.
Title: Re: How Many GPP
Post by: Night Wing on October 25, 2011, 10:39:00 AM
I can't vote in this poll.      :(    

I have two bows which you can see in my signature. One shoots a 10.02 GPP arrow and the other shoots a 11.37 GPP arrow.

There isn't an option for me since I can only choose one box and I need two boxes since both arrows fall into two separate GPP categories.
Title: Re: How Many GPP
Post by: JimB on October 25, 2011, 10:43:00 AM
Sorry Night Wing.I guess I made the poll a little too specific but I'm glad you chimed in.You got the information across.
Title: Re: How Many GPP
Post by: Javi on October 25, 2011, 10:52:00 AM
QuoteOriginally posted by Friend:
Do to my disdain for applying 10 gpp as a general guideline, I am hesitant to vote.
The general 10 gpp guide line today is possibly an all around great choice for further ensuring possibly greater efficiency, enhanced safety for the bow and the user itself. Of course there are exceptions. I firmly believe the gpp guideline evolved from an era in the years when higher poundage bows were the norm.
Just concerned that the poll results could negatively promote using gpp arrows that do not take into account the all important factors of draw wt, arrow design, intended game and having over-all set-ups designed for the unexpected vs. requiring a virtual perfect mark. The results so far contradict the useage of low gpp of which I am well pleased and feel more secure for both the protection and longevity of our traditional community and the beloved animals we pursue.

For deer sized game:
Low 50's draw wt
Over-all efficient arrow design(~30% Ultra-EFOC)

I choose the 10 - 11 gpp range
I'm pretty sure it came from Fred Bear and Howard Hill in the early 40's.. Fred did a lot of testing with different weight arrows and how hard they hit about '43 if I remember what I read when I was a kid.. the most common draw weight back then was 45-55 pounds..
Title: Re: How Many GPP
Post by: last arrow on October 25, 2011, 02:19:00 PM
This poll once again proofs i am pretty average.
Title: Re: How Many GPP
Post by: last arrow on October 25, 2011, 02:19:00 PM
This poll once again proofs i am pretty average.
Title: Re: How Many GPP
Post by: doeslayer on October 25, 2011, 02:32:00 PM
my longbow shoots about 9 gpp and my recurve is around 11 gpp.
Title: Re: How Many GPP
Post by: Bud B. on October 25, 2011, 02:39:00 PM
I didn't vote either. I let my bows dictate what they want. But I try, repeat try, to stay above 8gpp, but have and will go below for the needs of the pursuit. (low pound bows vs. squirrel = need for a fast arrow. Dang jummpy creatures)  :mad:
Title: Re: How Many GPP
Post by: Friend on October 25, 2011, 04:52:00 PM
Shaping up quite different than the poll results taken on 6/29/2010. I believe the differences, in part, reflect a more informed community.
'My opinion only'

What weight are you shooting? POLL

Poll results after 526 Trad Ganger votes


Choose 1 less then 8 ggp 1% (6)

8 - 9 ggp 9% (48)

9 - 10 ggp 29% (150)

10 - 11 ggp 35% (182)

11 - 12 ggp 16% (86)

12 - 13 ggp 7% (36)

more then 13 ggp 3% (18)
Title: Re: How Many GPP
Post by: Jeff Strubberg on October 25, 2011, 04:56:00 PM
I'm with Friend for the most part.  I don't think GPP is a good measure unless you stick to a very narrow range of bow weights.  

With a low weight bow, say 40lbs, you need a higher GPP to try and preserve all the momentum you can.  With a higherweight bow, say 75lbs, keeping every slug is not as critical, so you can get away with a wider range of GPP.

I start at around 450 grains of arrow for a 40 pund bow and add 50 grains every ten pounds or so of bow weight.  Makes a lot more sense than saying a 450 grain arrow will work out of a 45 pound bow but isn't going to penetrate out of a 55 pound bow.
Title: Re: How Many GPP
Post by: Zradix on October 25, 2011, 05:09:00 PM
Good words Jeff.

I'm running heavy..12.5..because of my lower poundage bow..47#
Title: Re: How Many GPP
Post by: Gehrke145 on October 25, 2011, 11:02:00 PM
Between 8 and 9 (450 to 480 grain total arrow weight)
Title: Re: How Many GPP
Post by: FrankM on October 27, 2011, 02:35:00 AM
The arrows that seem to finally tune for me are 10gpp. 500 grain 3355's.
Title: Re: How Many GPP
Post by: SteveB on October 27, 2011, 06:06:00 AM
I don't set up my hunting bow with a gpp as a goal. But they always fall between 8 and 9.
Title: Re: How Many GPP
Post by: katman on October 27, 2011, 07:17:00 AM
I will build whatever weight arrow, that is tuned, yielding the arrow speed I am very comfortable with for each bow, usually between 10 and 12 gpp. Therefore trajectory will be about the same with all my bows.
Title: Re: How Many GPP
Post by: LONGSTYKES on October 27, 2011, 07:33:00 AM
Generally 10gpp to 11gpp , 575 to 600 grain total for me. Tunes and works the best for me on my set-ups.
Title: Re: How Many GPP
Post by: Javi on October 27, 2011, 07:46:00 AM
I don't normally hunt whitetails anymore; mostly I hunt hogs and the occasional exotic. Because of the built in armor on the hogs I prefer to use a heavier arrow than I would if my usual target were the thin skinned deer. That and the fact that the heavier wooden shafts with a 200 grain BH is much more forgiving in our Texas wind and my occasional bobble at release.  My bows run between 46 and 50 pounds at my draw length and the combination of DW and a arrow in the 600 grain range just seem to work for me.. That would put me in the 12-13 GPP range I reckon..  10 GPP and less just don't seem to perform near as well...
Title: Re: How Many GPP
Post by: Ben Maher on October 27, 2011, 08:35:00 AM
between 9-11gpp ....
Title: Re: How Many GPP
Post by: JimB on October 27, 2011, 12:24:00 PM
Friend,I didn't realize there had been another poll.That's very interesting,Thanks for putting that up.
Title: Re: How Many GPP
Post by: JimB on October 30, 2011, 12:38:00 PM
Bump
Title: Re: How Many GPP
Post by: smokin joe on October 30, 2011, 01:52:00 PM
I aim for anywhere 9 and 11 GPP and let the tune make the final decision. I think that is a fairly common approach.
Title: Re: How Many GPP
Post by: Vig on October 30, 2011, 05:34:00 PM
Good idea! Though- your data may be skewed based on how you are collecting it.  Where do I vote if I shoot 9 gpp?  or 11 gpp?  I could vote in two different groups, driving your data to be more spread out and less accurate.  I think it would be better if your options didn't overlap (i.e. <9, 9-10.9, 11-12.9, 13+).  

I'm just an unfrozen caveman, so take it for what it's worth...

-Vig