?Arrow difference between 250 and 340?

[RiverRat00]

I want to hunt whitetail with 70 lbs weight.

Which one of the above is better for a 30 in draw?


I bought both of the above on sale cut at 30, which one is best and what's the difference?

[Phorizt]

How much weight in the front end of the arrow? What type of arrows are they?

[RiverRat00]

How much weight in the front end of the arrow? What type of arrows are they?

Be man ics hunter classic 340s. +.003

Other are carbon express adrenaline 250

I don't know front end weight

[txoutdoorsman24]

Honestly neither of those are good, 30” draw at 70lbs needs a 300 spine or stiffer depending on what total weight you want.. But of your two options, the 340 is the better of those two. That 250 is nowhere near enough spine, will flex like crazy and could possibly blow up on you. Carbon express arrow in 350 would be ok.

[hoyt21]

Honestly neither of those are good, 30” draw at 70lbs needs a 300 spine or stiffer depending on what total weight you want.. But of your two options, the 340 is the better of those two. That 250 is nowhere near enough spine, will flex like crazy and could possibly blow up on you. Carbon express arrow in 350 would be ok.

I’m sorry this 100% false. 250 spine is a lot stiff than a .340. If it was me I’d get into at the least a .300 spine for what you’re shooting

[Black-N-Red]

I’m sorry this 100% false. 250 spine is a lot stiff than a .340. If it was me I’d get into at the least a .300 spine for what you’re shooting

If you’ll read the the 250 is a Carbon Express. That’s the same as a 400 spine in other brands.

To the OP the 300 spine is what you need. Carbon Express is backwards than other brands. C.E 250 other brands 400 spine.


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[Sleepy]

250-300 spine.

I would cut some length off those though. Lots of variables for spine selection but if you are just running factory inserts and 100gr heads, I would run the 250’s.

If you chop some off the 340’s you can probably get those dialed in as well. But not at 30” long.

[muddyfuzzy]

I’m sorry this 100% false. 250 spine is a lot stiff than a .340. If it was me I’d get into at the least a .300 spine for what you’re shooting

The CE spine are reversed, their 250 is everybody else’s 400. Neither is good imo. A 250 spine (like BE, Easton, Victory) cut to 29.500” AMO with about 100 grains of insert weight with an additional 100 grains of tip weight; however, is perfect.


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[hoyt21]

If you’ll read the the 250 is a Carbon Express. That’s the same as a 400 spine in other brands.

To the OP the 300 spine is what you need. Carbon Express is backwards than other brands. C.E 250 other brands 400 spine.


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Why would they do that lol

[muddyfuzzy]

Honestly neither of those are good, 30” draw at 70lbs needs a 300 spine or stiffer depending on what total weight you want.. But of your two options, the 340 is the better of those two. That 250 is nowhere near enough spine, will flex like crazy and could possibly blow up on you. Carbon express arrow in 350 would be ok.

C’mon now dude it’s not going to blow up on him lol.


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[muddyfuzzy]

Why would they do that lol

ASTM F2031-05 is the standard that is used to determine deflection. It consists of hanging a 1.94# weight at the center of a shaft suspended across a 28” span. The Easton method (which is what most of us are accustomed to using) classes the arrow on it official spine or measured deflection using the above Standard. For some reason those CE guys had to push the grain and report the deflections in their own manner.

Nobody knows AD, and I don’t care enough to find out.


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[Bigdaddy]

340 to 300
Spine is what you need. 400
Is underspined. The heavy spine will
Shoot a lot better. Read the spine charts 29 inch arrow 100 grains up
Front is border line 340/300. Gold tip
Easton victory black eagle pull
The charts yourself.

[Texas Grown]

Carbon Express tries to differentiate it's self from the rest of the industry. A 250 CX shaft is way to weak for 70lbs at 30". And the shooter will stand a good chance of being injured at the shot via the shaft snapping and driving the carbon into said shooter. Or even having said bow blow up. If you haven't seen pics of under spined arrow injuries, just google up a few. If you want to shoot CX shafts/arrows, get the 350, not the 250. I've been shooting CX shafts since 2000. And building my own arrows based on CX shafts few years after that.


Just about all other brands you can get the 340 or 300 and be good with that poundage and draw length.

[txoutdoorsman24]

I’m sorry this 100% false. 250 spine is a lot stiff than a .340. If it was me I’d get into at the least a .300 spine for what you’re shooting

Not false but the answer has already been posted. CE is just trying to be different and this is how they do it.

C’mon now dude it’s not going to blow up on him lol.


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No it won’t but there’s a much greater risk of it happening with an under spines arrow.

Carbon Express tries to differentiate it's self from the rest of the industry. A 250 CX shaft is way to weak for 70lbs at 30". And the shooter will stand a good chance of being injured at the shot via the shaft snapping and driving the carbon into said shooter. Or even having said bow blow up. If you haven't seen pics of under spined arrow injuries, just google up a few. If you want to shoot CX shafts/arrows, get the 350, not the 250. I've been shooting CX shafts since 2000. And building my own arrows based on CX shafts few years after that.


Just about all other brands you can get the 340 or 300 and be good with that poundage and draw length.

What he said is what I said

[Bigdaddy]

Texas grown and txoutdoorsman 24 got it right. Glad people understand right from
Wrong