Hunting Washington Forum
Equipment & Gear => Archery Gear => Topic started by: nw_bowhunter on March 17, 2010, 03:04:09 PM
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My current arrows are 29 3/8 inches long. (Carbon Express 200) I'm switching to Beamans MFX 340 as I want a heavier arrow/more grains per inch. Cabelas sells them at 30" length. Will I need to have the cut down or will the additional length make a difference in shooting?
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If you are going for a heavier arrow, you are already going to have to re-sight the bow. Just use the 30" length and give yourself that much more weight. I am not an expert by any means though, so there could be some draw backs to doing it that way.
Brandon
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I was thinking it wouldn't matter either since I'm going to need to resite. Plus it saves me time to have them cut down.
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you should talk to a teck. as each arrow has an opitmum length according to the poundage on you bow. the beamans are a good choice for a hunting arrow. mine where cut to just over 29" and with 100 grn heads they wiegh in at 455 grns. but you should talk to someone try sportsmans wharehouse. they will cut emm for free if you buy from them.
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I tried buying from the Federal store when I got my bow fixed, but unfortunately they are out and have not received a new order as of yet. (been 2 weeks) After I buy them I guess I will check to see if they need to be cut down.
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The extra 5/8" won't change the spine enough to make a difference, and you are only adding about 6 grains of weight. You're right we are out, and will be for the forseeable future :bash: If you need them cut you can bring them in and we will cut them. No charge. Just mention this post,
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not a problem not enough to make a difference big enough to notice. shoot away.
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Right on...thanks I appreciated that.
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Let me start by saying that I'm not trying to chime in as an expert but rather a confused beginner. I just bought a bow myself so I've been reading about arrows and to me this seems more complicated than just saying the difference is insignificant. Doesn't the answer really depend on his draw weight and the weight of his broadhead?
Assuming that he is shooting a 60-70 lb bow with 100 gr broadheads then 29" or 30" arrows both work.
60 pound draw weight with 85 gr broadhead works at 30" but not 29". A less stiff arrow would be required/optimum to go 29".
70 pound draw weight with 125 gr broadhead works at 29" but not 30". A stiffer arrow would be required/optimum to go 30".
Don't forget - this is all based on what I've "read" and I have no personal experience. I'm just trying to learn which is why I read this post in the first place.
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I have heard arrow length of +/- 1/2" can really change your spine.there are alternatives for gaining more weight. Look into the arrow inserts. They are basically like a slurpee straw and they make them in different gpi weights.
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The 1/2" difference will make little difference in the optimum spine for your setup with the same arrow; for MY SETUP, it goes from a optimum spine of .362 to .368 by subtracting a 1/2". However, changing arrows and spines and lengths all at once makes you throw out the first arrow completely and choose the correct spine for the new setup. I didn't see what type of Carbon Express you had, but all of the 200 series of them that I could find were .450-.460 spine, which sounds a bunch weak to me, so maybe I missed something. The MFX 340's you mentioned are great arrows, but the length and spine question is answered based on your setup. Post your info here, and I can put it into the software to see what it looks like; it may save you some money one way or the other. I'd need: bow year, make, model, draw length and weight, and point weight.
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If you wouldn't mind I'd like to see what you come up with for my setup.
2O1O maxxis 35
29" draw @ 71lbs
1OOgr
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If you wouldn't mind I'd like to see what you come up with for my setup.
2O1O maxxis 35
29" draw @ 71lbs
1OOgr
Didn't know arrow type or length, so I used Easton Axis 300 at 29". 450 grain arrow at 284 fps. Shows recommended spine of .301". 28" arrow goes to 439 gr at 286 fps and recommended spine of .311"
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First question: What spine are your “Carbon Express 200”?
First comment: Squaring your new carbon shafts, both fore and aft, will aid in accuracy so using your shafts as is may not be a good idea.
We need arrow length (from nock throat to end of insert), draw weight and bow model and make to accurately determine the correct spine for your rig.
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Konrad- the arrows I bought sometime ago are by Carbon Express- model CX 200. Bought them when I was in Montana
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First question: What spine are your “Carbon Express 200”?
First comment: Squaring your new carbon shafts, both fore and aft, will aid in accuracy so using your shafts as is may not be a good idea.
We need arrow length (from nock throat to end of insert), draw weight and bow model and make to accurately determine the correct spine for your rig.
