Do you all try to keep hunting arrow weight around 10 gpi or go with stiffer spine with extra weight up front? Mainly for whitetail and a few hogs. Thanks

Do you all try to keep hunting arrow weight around 10 gpi or go with stiffer spine with extra weight up front? Mainly for whitetail and a few hogs. Thanks

Sorry for double post

Interesting post. I can comment on hunt because I have never shoot anything with my bow but in the back yard it seems 10gpp would be good and I have shot foc in the upper 25%+. Think I’ll just stay around 15 to 19%

No. I shoot the arrow and broadhead combination that shoots the best from bows, or fits the use environment that I am going to be hunting in.

Now, depending on what shaft material you are using, it may be difficult to come up with an arrow that DOESN'T come in around 9or 10grs.per.lb.. And, with some other materials you can build hunting arrows that weigh 7grs.per.lb..

GPI?

I'm over 19 grains per inch! Hunting, stumping and target.

10.9 grains per pound (gpp).

Sorry I did mean 10 grains per pound

10 gpp seems to shoot well from my 66-71# bows.

10gpp is as good as any. best of both worlds good speed and desent weight. with a coc 2blade you have no worrys with the equipment if you do your part.

I like 9gpp but since easton shortened their 2219 shafts i can no longer shoot swagged shafts so with aluminum i'm stuck with 10.4 gpp because of my draw length. With wood and a longbow its about the same.

20 GPI 12 gpp

I usually end up a little less than 10 GPP when I'm done tuning. My arrows have 250 grains up front.

Think I read a years ago when heavy arrows and dangerous game was the topic to where around 12.5 - 13 gr per inch was the limit where the momentem was offset...

I keep mine about 12gr per inch or so. I like a 550-600gr hunting arrow with 19-20% FOC. Something around that seems to work well for me.

It's per pound of draw weight not per inch.

I'm around 7-8 gpp need no more for deer

I like 9 to 12 gpp. I understand and even mostly agree with the concept behind the Ashby extreme weight forward principles but I personally don't bother. Just use 125 to 175 gr glue on's on wood (mostly cedar) shafts.

I bet we have never discussed this before on this site.

I like 10-12 gpp. 125 to 145 gr. up front.

I've never seen this discussed before and quite honestly, did not even know it was a way to gauge arrow weight. Maybe I should start paying more attention to detail and get my head in the game.

TK - where’ve you been hiding??

I actually ran a poll here a few years back, and the vast majority of us are shooting somewhere between 9 and 12 grains PER POUND of draw weight. The average was actually a bit higher than I would have expected, but that’s the problem when you collect answers from people who want to give them rather than polling individuals at random and getting a straight answer from each one of them.

Now, it’s entirely possible that a few of the guys were just yanking my chain, but…

We have guys here who shoot 7 and some were up around 14, 15, 16… Might even have been one or two at 17+. The thing to remember is that a bow of a given design will shoot X GPP at approximately the same velocity regardless of draw weight - as a rule, long draw shooters have an advantage, and we stubby guys take a hit.

So knowing what your GPP is is useful if you routinely shoot bows of several noticeably different draw weights and you want to keep your trajectory consistent from one to the next so that you don’t have to retrain your eye every time you pick up a different bow.

Where GPP becomes less of a consideration is once you get into an arrow that weighs more than, say 450 grains. That’s 10 grains per pound out of a #45 bow, and most people consider that to be a reasonably generous amount of mass; given a reasonably efficient design, you should have no problems killing just about anything you are interested in shooting at, because the KE (or the momentum if you prefer to think of those terms) is there for you.

But 450 grains is 450 grains. If 450 grains out of a #45 pound recurve is “plenty”, then 450 grains out of a #50 pound bow is more than plenty @9 GPP, and way more than plenty out of a #75 bow, even though now you’re down around “only” 6 GPP. If it will drive clean through the animal at 160 FPS, it ain’t gonna bounce off at 210.

Rick Barbee has run a bunch of different penetration tests, and he keeps coming back to the finding that 9 GPP is where it’s at for a hunting arrow; enough mass for the limbs to transfer energy to the arrow efficiently and not enough to overload the limb to where things get slowed down too much. A grain either way may make a discernible difference in penetration testing, but it’s hardly a deal-breaker.

Going much higher on GPP MAY get more KE back out of the limbs, but it will cost you velocity and you have to make up your own mind as to how loopy a trajectory is acceptable. Some of the high-GPP guys insist that they are more accurate with the slower arrow because they can see what’s happening, and the Speed Merchants just want to know that their trajectory is flat enough to cancel out whatever elevation miscalculation they may have made.

So JMO.... if you are talking about a light draw weight, you might want to make sure that you have at least nine or 10 GPP working for you. Otherwise, shoot whatever weight you end up with once your arrow is tuned, your bow is quiet, and the trajectory allows you to hit accurately within the range that you consider to be your limit. Just don’t be too surprised if you end up right around Nine.

I shoot bows in the lower 40# range. Ive shot big corn fed whitetails with between 9 and 13.5 gpp. I noticed no difference on boiler room penetration. No matter what combo i shoot out of these bows, i know i won't get through the shoulder blade reliably so i keep shots close.

I do find arrows above 12 gpp to really drop off past 25 yds making them less than ideal for me at 3d shoots. Seems like im most comfortable between 10-11 gpp.

Who cares if it was discussed before. Robbo ask a question so give him a answer. There are quite a few questions that have been ask many times before, and quite a few threads posted with the same old stuff.

X 2 NEMO!!!!!

X3 Nemo!!!!

Deno

Just try to find the lighter side of things folks. I think everyone knows by now how much this has been discussed, unless they've been a Rip Van Winkle. It's not like there isn't plenty of evidentiary semi-conclusions here and other places to the point of nauseum. Geesh Edith. Like Dad always said, maybe get outside and blow the stink off.

I have noticed that most people on here shoot 8-12 gpp. VERY few shoot really heavy arrows.

In contrast, on most of the FB sites lots of people are shooting very heavy arrows (14-18 gpp or more). Lots of mentions of Ashby and bone crushing.

They also claim some rather incredible things, such as a 30 yard point on and a flat trajectory with a 850 grain arrow (17.4 gpp) out of a 49# longbow!

A couple also made some very rude comments about Rick's test, which as done mostly for fun.

I shoot aluminium and all of my shafts for 45-60# bows end up being 9-10 gpp with 135- 175 grain heads.

Seems most people here are in the same boat as me.

GF, in the woods...

Thanks for the help guys

Fred Bear, and many others had it figured out years ago.To deviate from 9 to 10 gpp is just a personal choice.

I shoot 9-10 gpp on all my hunting arrows.

My target and hunting arrows are 9 to 10gpp, both aluminum and wood. I shoot 55# to 65# bows.

“ Lots of mentions of Ashby and bone crushing.”

Are these stickbow groups? Somehow, I just don’t see it. I know Dr. Pope reported that he sheared the head off of the humerus on a Griz with one of his longbows, but he was rocking some seriously heavy poundage and arrows to match.

Somehow, the thought of “smashing bone“ with a bow under 50 pounds just doesn’t quite compute for me, Ashby recommended or not. Bones bigger than a rib, anyway…

I like about 550 grains for deer size critters, 600 to 650 grains for elk. That usually puts me in the 11-12 gpp range.

HA,,reading this thread got me thinking, over the last 4-5 mos. I've dropped down in bow weight 5+ lbs. On all my bows. Heaviest I'm drawing now is 45lbs. Static Griz B-55 string arrows are 430 to 450 between the Cedar and Fir. My other bows are <45# on those bows I'm using Mercury strings, and using 50-55 and 55-60 spined shafts. Those shafts are 550 grn, some a little more, I use 135 grn Deadheads and Bear Greenies. I'll be right around 12 +- depending on the shaft wood. Hmm. Never really gave it that much thought until this thread and was always around 10 or a little heavier. Have to remind myself not to over think this, I'd hate to take the fun out of it.

I bet most of the guys don't even know what they really shoot. They probably don't have a weight scale or a spne tester either.

They look at scales and try to figure it out from there.

Spinned for the bow whatever you shoot and weighted to stay in that perspective and add a little weight if you want up front but without a sharp head head into the wind and take a piss.

Ya have to test your combo out then see how she is shooting but then know how to correct things to have a pile driver.

I have several combos I can shoot out of the same bows whether I am shooting woods,aluminum or carbons that day.

Gets a little expensive this way trying so many things out but what is there to do.

SHARP HEADS ALL ELSE IS SECONDARY. STEADY AT THE SHOT AND BARE DOWN.

Oops, yeah, meant per pound... My bad...

Feed me data!

Poundage & arrow mass would be a good starting point.

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