View Full Version : Adding weight to arrows
Jeremy87
14-11-07, 06:08 PM
Hey fellas what is the best way to up the weight on arrows and keep them shooting nice, I'm heading up to darwin for 2 weeks of hunting and fishing (provided the wet doesn't show up early) so i'm thinking about making up some arrows total weight of about 550-600grain since i'll be going for big pigs and maybe a buff (though if we see buffalo we're probably going to wack them with a rifle). I'm shooting a drenalin at 70lb (well i was i hadn't picked it up for a while and had to drop it back to about 65ish but i should have worked my way back up to 70 before the trip) at 26.5 inches. at the moment i'm shooting vapours with 125grain heads that weight about 405grain
Jeremy87
14-11-07, 06:10 PM
My bad i ment to put this in general
Why cheat your self and "wack" the buff with a rifle. If ya there and have the chance take one with the bow and use the rifle as a last resort. You know you would love to have a good set of buff horns on the wall taken by bow!!!
grimmobow
15-11-07, 09:24 AM
I have a copy of feral game downunder and in the show brad smith takes a buff from around 15-20 m and im pretty sure he says that he used alloy arrows one inside the other to gain weight and increase strength. BUT im not positive about this and not to sure about sizes and weight.I do know that a 500 eastern epic will fit up snuggly inside a 500 fatboy.
There ya go, moved! Mate try the rubber that holds fly screen in. Should fit nice and snug. Ya might have to tune your bow slightly. Works very well for beefing them up. Good luck!
Would what your using not give you enough KE ?
Say your getting 280fps from your 400 grain - roughly 70foot pounds KE
Now if you go to 600 grain and shoot at 230fps thats about the same......
Would you be really gaining anything ?
Jeremy87
15-11-07, 06:45 PM
Yeh we are half debating just having the rifle as a back up, but none of us going really have very many bow hunting kills under our belt and were considering the path of caution for dangerous game like buffalo.
So when adding weight only to the shaft, what does that do to the arrows centre of balance? would you also have to add weight to the tip?
My understanding was it was normal practive to up the weight a bit for the buffs, some here would even say that 600gr is too light, as disscussed on the pass throughs and arrow speed thread shooting a heavier arrows will generally give you better penetration which is important for large thick hided animals, either way i wasn't really fussed on the idea of sticking a buff with a 400grainer and getting really lousy penetration even with a .375 h&h backing me up.
wazza_X force
15-11-07, 06:56 PM
dont worry about the too light stuff mate... 600grn is more then enough i'd reckon... i'd be more then comfortable having a crack at 70# especially... like you say anyways, you have the rifle if it goes south quick...
wazza
XTfreak
15-11-07, 07:03 PM
405 is plenty of weight.
Forget adding weight and make sure your accuracy is top notch and then whack whatever animal ya want.
Bill
Jeremy87
15-11-07, 09:03 PM
Ok i won't go mega heavy then, but i did notice that after backing the bow off that both the bow and arrow noise reduced dramatically from the reduction in speed, i was thinking about upping the weight anyway purely for this reason, ok so how do i increase my mass to say between 450 and 500? is it too much buggering around? or is it a better option to just buy heavier shafts?
wazza_X force
15-11-07, 09:24 PM
what sort of shafts are you shooting mate??? for cx 60 series shafts you can get 4gpi weight tubes that are designed for exactly this purpose... dont go for the heavier points though... the foc wont change that much.. putting more weight up front will weaken the spine of the arrow and cause crap flight...
wazza
Jeremy87
15-11-07, 10:00 PM
blackhawk vapour 4000's, cheapest carbons i can get. I have trouble matching my arrows spine because of my short draw length but i've found they fly best at about 65-66lbs and sought of jolt sideways a little over the first 10-15 meters at 70lb so i don't think they're spined right as is.
wazza_X force
16-11-07, 06:35 AM
if your draw length is short and the 4000's are spined for 70# normally, then a bit of extra point weight is exactly what you need... the short arrows will stiffen the spine and the heavy tips will weaken it again, so i'd be giving some heavier tips a go...
wazza
4000's should be right for your set up according to my little program.
Out of my 60 pound bow I shoot 4000's 29 inch arrow 100grain point
Out of my 70 pound bow I shoot 5000's 29 inch arrow 125 grain point
I use the camo pro series whitetails.
Unless you confident with your bow on buff I'd stick with the .375
400 grain arrows for buff you have got to be kidding youre just asking for trouble shooting that sort of setup , make sure your will is sorted before the hunt cheers ron.
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