or specifically shooting the spine out of your arrows. After reading some paragraphs from Rick McKinney on Carbtech's website........he says the spine can be weakened much quicker from aluminums than all carbons, of course I agree. Due to the hitting of hard targets, pulling arrows, etc. What I am not sure I agree with is the losing of factory spine from all carbons vs aluminum/carbons as in an ACC can lose spine quicker than an all carbon. I have no scientific evidence. Though I know an aluminum/carbon can bend, McKinney states an all carbon can't bend but can bow.......not sure I understand this. Taking into consideration that McKinney has his own line of arrows with Carbon Tech, I am just wondering if anyone can show or state evidence that an all carbon arrow can definately retain its original spine longer than an alum/carbon arrow provided the alum/carbon is not abused..i.e. under normal use? I am soon purchasing some new arrows, strongly considering ACC's but have thought about trying some Carbon Tech Whitetail XP shafts.
I use CT Whitetail XP's and have probably a couple thousand shots on some of them and they still spine true. Len tested some CT rhino's and I believe he said they put something like 10,000 shots on them and didn't lose before noting any spine loss. Also, with the CT whitetails I have purchased the spine was consistent across the dozen as was the straightness. I am not sure what he means by "can bow" either but I would suspect it means more of an overall bend, from end to end, insttead of a bend over a small section that a perhaps an aluminum can do. If that is what he means then I haven't had any "bow" problems either.
Thanks Bruce, good info. I've not even seen a CT in person locally but have heard good things about them. I really like the ACC's and do not normally care for all carbons, but the CT might sway me.
I've shot the spine out of carbons pretty quickly, though that hasn't been the norm. I've NEVER shot the spine out of an aluminum though. I THINK what he's referring to (regarding bowing/bending) is a carbon arrow can warp, especially once the spine has been shot out of them (or exposed to heat for long periods of time, as in the trunk of a car.) An aluminum bending is obvious, and I don't think you need that explained to you. I've shot ACC's and currently shoot Maxima Hunters, and I can't tell any difference in quality between the 2. But, since they are in fact aluminum, they can indeed bend, and will especially if you're shooting tight groups. But on the flip side, if you're shooting tight groups you can break the spine in an all carbon arrow as well. IMHO, the difference between an ACC and a quality all carbon are 6 of one, half dozen of another. You just can't go wrong with either one.
I saw a guy one time who had some CX line jammers and shot the spine outta a couple of them. It wasn't me or anyone I know, I just happened to be at the shop at the time. And he shot them at the range and couldnt hit good with 2 of his arrows. You could say he flinched or w/e but he was a good shot. Blue bow with scope and 3 foot stabalizer and somthing was up with those arrows.
shooting out the spine means??? and you can tell by??? Forgive me for being a total newb. Im a info sponge though. Thanks
Shooting out the spine means the static spine weakens, likely in an area of the shaft and not all around. This would affect dynamic spine and arrow flight. You can tell by having an arrow that no longer groups with the other arrows or erratic arrow flight or both or by measuring the spine.
dynamic and static spine? Ive definately noticed 1 fly a few inches to the right. Are they done at that point?
For me, for hunting, the off arrow doesn't make it. You can rotate the nock 120 degrees (use the fletches as a reference) and shoot it again with the others and see if it groups with them. That would indicate a weak area in one protion of the shaft. I still wouldn't use it for hunting though. Static spine - how much the shaft flexes when laying on two points with a weight pulling down in the middle. Dynamic spine - how much the shaft flexes when being shot from a bow with a particular tip weight, rear weight configuration.
