Gpp

Joined
Feb 25, 2012
Messages
2,830
Location
Michigan
I have a new setup. Is 475 grains enough for hunting big game? It is just over 9.1 grains per pound.

77cb28676776662f8eed77895e352bf2.jpg


c59b8a5959c18f55576865451e54a190.jpg


476b6df110b7bb6fd3b9a1a51d10358b.jpg
 
Last edited:
Sounds like you're shooting about 52-53lbs? I've used a very similar set up at a 26.5" draw for years. With a well tuned arrow and an "applicable broadhead", it worked fine for me on Hawaiian game (sheep, goats, deer, hogs).

DL, is also an important consideration. (50lbs @ 25" vs 50lbs @ 29" they both could have an arrow at 9gpp, but the 29" guy will have a the higher fps)

Recently I've changed my rig though. Because of my short DL and the fact that I want to pursue larger animals, I bumped up to 55-57lbs and running an arrow in the low to mid 500s (9.5-10gpp).

BTW, that's a sweet looking rig!
 
Last edited:
What Ryan said. Your draw length can make a huge difference. The right broad head, good flying arrows, proper shot placement and you should be good for most big game.
 
To determine GPP, you need to know the poundage at your draw. But as I mentioned, GPP may be the same for two hunters, but if their DL varies, it won't be a fair comparison.

One recommendation would be to look at arrow weight and fps. Other factors may include, type of broadhead, foc, diameter of shaft and definitely tuning.

Hope this helps...
 
Brandon,

My GMII has 70# limbs @ 28", I draw about 27.5" My arrows are 29" long with 125gr BH and 100gr insert and weight about 570gr total. I am shooting approximately 193fps. If you shot that same set up, my guess is that the arrow speed would go up by a few fps, to around 195-198fps, because of your draw length.

Shot placement and sharp BH's are key, you know that. You have approximately 9.5 months until elk season to get ready.
 
I think its all about arrow weight...and you have plenty. i shot a big Kansas buck with a 488gr arrow from a 42# bow last year as I had been struggling with Elbow problems and just picked it up a week prior to the season- blew through that deer.

Shooting a 577gr arrow even from a low energy setup gives you some penetration power. Pair that with a super efficient 2 blade head and it should blow through any deer or elk. Put a short chisel point head on there and you lose a lot.

I'm currently shooting my bow at 54#, 560gr arrow and it packs a punch...add the Buzzcut and its a formidable weapon
 
I know it's been done before, but wouldn't hunt elk with less than a 500gr arrow unless it was shot out of a wheel bow. I shoot 54@29 with a 562gr arrow, single bevel head, and it has worked well so far. You're good for deer.
 
Right around 500 grain with a 48-52 lbs bow is what I have had plenty of success with. I've been shooting a two blade which I really believe makes a big difference in penetration. Also spend your time sharpening until you can shave.
My two cents.
My experience has been with mule deer bear whitetail elk.
 
Back
Top