broadhead weight

[Puk]

Hi guys,
I am a bit new to trad, having owned for a few months one recurve with a draw length that was too short and selling it again. I am now going up market, and getting a bow built for my needs (which i should have done to start with (lesson in that). :oops:

Anyway, i don't have the bow yet, but will be shooting 55/75 GT's out of it off the shelf. (Wood just has too many inconsistencies) I just won a dozen tuskers from BHDU magazine for my fictional story.

What weight do i want? the spirits, concords, deltas, aztecs, what?

Bearing in mind that they will have an adaptor with them as well, seeing i will be shooting carbon. Is there an ideal grain weight for this set-up? Should i get a lighter head and start adding weights to the front?

The bow is 40lb at 28 inches, so i will be shooting about 50 at 31 inches.
AS is obvious i don't know too much about spines, grains and FOC yet. Any advice would be great.

Puk

[Puk]

No?
Well, thanks for reading anyway. :?
Puk

[woodstoka]

hey mate id say 125 gr head will be the best but since the bow is moderatly low poundage maybe somthing heavy penetration wise

[adam]

Sorry mate read it earlier but hadn't the time to post anything.

Best of getting what ever head you like, my preference would be anything from 125 to 160 grains. Leave the shafts at full length; weight them up to a good 550 to 700 grains with tubing or weight adaptors. Then bare shaft with the same weight field points, and cut off 15mm at a time till the shafts are grouping well and sticking straight out of the target.

That’s the easiest way to start out, and then over time and practice try a few other set ups.

I like a heavy weight up front giving a greater foc. One of the pros of this is I can get a stiffer spine shaft = a heavier weight per inch arrow and then soften that spine by adding extra weight up front.

So yeah pick what ever mate, then do the shafts up to match.

Adam

[adam]

The bow is 40lb at 28 inches, so i will be shooting about 50 at 31 inches.

Mate whos making the bow, what is it tip to tip. And has the maker told you you'll be getting 50# at 31inch.

Adam

[adam]

Sorry me again, What are the gts length uncut

[HOOD]

Adam the GT 5575's are 32" uncut from memory.

Puk the carbons I was using from my curve are 5575's with 125grain points and awning cord up the guts to bring the weight up a bit.
Mine are 28" long with 5" feathers and shoot great.
I also use the woods you saw on the weekend they are spined 55# 29"from nock groove to back of BH using 160grain ribbies. and 5" feathers.

Both fly really well from the same curve.
Will try both with Bowmarang this weekend.

Hope that helps a bit.
But like you I'm still learning.....and hope I never stop learning.

[Puk]

Adam,
the bow is a chek-mate hunter 2 at 62 inches, and i forget either 40 or 45lb at 28 inches.

And no, my assumption was that the three extra inches would add 3-4lbs per inch. It is an assumption based on advice from other archers, not the bowyer.

Puk

[adam]

No worries puk, sounds like a good tip to tip for a 31inch draw. Do you know how long the riser is?

Is that without the nock Hood, would be good to have a few inches to play with when bare shafting and cutting.

Puk if the heads you get don't fly well, I trade you for another size head. Because you don't have much to play with length wise you may need to work with a certain weight head, or spine arrow.

Anyways should work out.

Adam

p.s keep me informed

[HOOD]

Is that without the nock Hood, would be good to have a few inches to play with when bare shafting and cutting.p.s keep me informed

Adam thats with out the nock.

and 3555's are 30" long with out the nock :wink:

[adam]

Thanks Hood, a little bit more to play with.

[Puk]

Thanks guys,
I really do appreciate the help, because as i said i am very new to this whole concept.
It has also been suggested to me in a PM that i might consider alloy arrows, as they will be easier to use and tune with less worry about the weights.

Puk

[Puk]

Bloody "inspector gadget arms" make it hard sometimes. :cry: :evil:

You know how your armspan is supposed to be the same as your height? Well, my height is 195cm, and my armspan is 203cm. I don't know why.
It blew Ed away when we compared wingspans at the S.A. vids night.
Puk

[ed]

yeh and you should see how he moves along the beams of hoods verandah!

You will need every bit of length from the 55/75s I would think that you will need an even longer shaft as I am surprised to hear your draw is only 31 inches. You going by what you shoot compound and release aid with?

[Warlocke]

You would probably need a lighter B/Head with that drawlength and 55/75 shafts.

I'd try the 125gr first, as with a 31" draw, you will be getting the softest end of the 55/75.

This would be OK with 125-135gr but might cause spine trouble with a heavier head.

[Clinglish]

If you find the carbons to short Puk you can always add a couple of inch 's.I made up some extensions for a couple of dozen .All you need is some 8/32 bolts and 2 inserts , plus the length of carbon that you need to extend .I will post a pic if you want one .
The extra inserts and the rod add a nice amount of weight up front as well.

[Puk]

Ed i shoot 32 with a 'pounder, and have been told that you usually lose half to one inch when going to a bent stick. So i made up 31 inch arrows with 4 inch shield cut feathers, and when trying to use the bowmerang i couldn't get them to full draw.

The last day i had it in my hands, the day that HOOD and NormGunston were here, with a bit of help on form that i have never had before, and with 2 more months of gym work under my belt, i reached my anchor without too much trouble, and the 31 inch arrows were just clearing the front of the riser, feeling like they were the perfect length.

I can't believe i put the thing down and left it alone for a full 2 or 3 months thinking i couldn't reach my anchor with it. It was stacking a little the other day, but it did make it. My shoulder had recovered a fair bit in that 2 or three months, and my back has been consistently strengthening up. I don't think i will be drawing your 100 pound longbow yet Ed, but i am getting a lot happier with the strength in it.

Puk