Author Topic: grains per pound (Read 542 times)

BOHO · « **on:** November 22, 2009, 09:16:00 PM »

hey guys, just wanted to see if 10-11 gpp was still the norm these days. Used to if you went below that it voided warranty. Is that still the standard? thx

Guru · « **Reply #1 on:** November 22, 2009, 09:22:00 PM »

Usually below 8gpp will void most warranty's....

I believe you'll find that 9-11 is what most are shooting...

I personally like somewhere between 9 and 10gpp depending on what I'm hunting....

BOHO · « **Reply #2 on:** November 22, 2009, 09:27:00 PM »

thx Guru. I think 10 is what I used to try and stay around but I'm changin up when I try this again. :D

sweet old bill · « **Reply #3 on:** November 23, 2009, 04:33:00 AM »

so if you are shooting a carbon arrow and the bow weight is 50 lbs and the total arrow length is 29 inch the results you should have is 290 total grains. ( I used 10 gr per inch ) in the arrow.
I am up to 530 gr with extra heavy brass up front...the raw shaft bemen hunter carbon 400, nock, 125 gr field tip or BH, insert alum for the point, 3 5.5 inch feathers, 100 gr .244 copper bullet, and last 29 1/8 inch long 1/8 inch poly rope rope.....they seem to fly well

Butch Speer · « **Reply #4 on:** November 23, 2009, 07:14:00 AM »

Bill,
They're talking about 10gpp of bow weight rather than arrow weight. Unless I mis-understood your posted. If I did, I apologize.

ranger 3 · « **Reply #5 on:** November 23, 2009, 07:44:00 AM »

Butch is right, it is 10gpp of bow weight. Your 530gr arrow is 10.6 gpp

Rob DiStefano · « **Reply #6 on:** November 23, 2009, 08:09:00 AM »

heavier arrows will always be kinder to bows, quieter, more stable, and deliver more energy to game.

the trade off is increased trajectory.

personal experimentation will dictate what works best for each of us.

Don Stokes · « **Reply #7 on:** November 23, 2009, 08:55:00 AM »

I like a minimum of 10, max around 15, depending on the bow. All bow pounds are not equal in performance, it depends on the bow design and materials used in its construction. A 50# recurve normally shoots much harder than a 50# self bow, and can maintain a better trajectory with heavier arrows.

wingnut · « **Reply #8 on:** November 23, 2009, 08:59:00 AM »

I usually shoot around 11 gpp. I have found it to fit my eye as far as trajectory is concerned.

Mike

Bjorn · « **Reply #9 on:** November 23, 2009, 10:21:00 AM »

I shoot 12 gpp. How could a bowyer possibly know if it was 7.6 or 6.4?? Humbug.

BOHO · « **Reply #10 on:** November 23, 2009, 11:52:00 AM »

I was thinking it was around 10 but I'm gettin old and my memory isnt very good anymore. lol I've been out of the trad game for a few years. I am gonna redo my whole philosophy and shooting style. Hopefully this time around will work better. I have lots of reading to do and questions to ask later on. :D thx guys

Night Wing · « **Reply #11 on:** November 23, 2009, 12:57:00 PM »

With my 42# @ 30" recurve bow, I shoot two different aluminum arrows. A 32", 614 grain 2215 and a 32", 654 grain 2117. The 2215 comes out to 14.61 gpp and the 2117 comes out to 15.57 gpp.

ishoot4thrills · « **Reply #12 on:** November 23, 2009, 01:01:00 PM »

I like my setup very well. Had a pass-through on a doe in September of this year. Check my sig. for the details, as I can't remember them right off!

sweet old bill · « **Reply #13 on:** November 23, 2009, 04:18:00 PM »

can soneone explain the gpp ? what is it and how do I measure to come up the physical weight of the arrow is 530 grains and that equal 10.6 gpp ?? sorry to be stupid but I guess I just do not know what the gpp stand for ???

my thanks

Bill

Rob DiStefano · « **Reply #14 on:** November 23, 2009, 04:24:00 PM »

divide the total grain weight of the arrow by the holding weight of the bow = gpp, or Grains Per Pound.

665 grain arrow divided by 55# holding weight = 12.091 gpp.

sweet old bill · « **Reply #15 on:** November 24, 2009, 04:30:00 AM »

my thanks

Bill

Jim Wright · « **Reply #16 on:** November 24, 2009, 08:36:00 AM »

Experiment a bit if you have access to a chronograph. I have found with my Toelke Whips and D bows that both like heavy arrows, I'm shooting 12 g.p.p. and getting 168-170 f.p.s. As you would expect, penetration is great and they are QUIET.

George D. Stout · « **Reply #17 on:** November 24, 2009, 04:40:00 PM »

Different bows, different styles, que sera sera.
I've found overall that 9 to 10 grains per pound work best for me and my bows. Right now I'm shooting 9.697 grains per pound. 8^).

WildmanSC · « **Reply #18 on:** November 24, 2009, 05:01:00 PM »

I'm shooting anywhere from 10.5 gpp to 10.96 gpp with my bows shooting a Grizzly Stik Sitka at 29" bop with the 100 gr inserts and 125 gr points up front. My 46# Marriah Thermal is pushing the arrows at 171 fps and my 47# RER and 48# Schafer Silvertip are pushing them a mite faster. And they all shoot them flat out to 20 yards. I'm deadly with all 3 bows at 15 to 17 yards and in.

Bill

Gil Verwey · « **Reply #19 on:** November 24, 2009, 08:02:00 PM »

I shoot longbows and like 11 to 13 gpp. My current arrow setup is 11.25 GPP. It is a 675 grain arrow with a 60# draw bow.

Gil


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Author Topic: grains per pound (Read 542 times)

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