ok my katera is set at 64.5 pounds and i use maxima hunters 250's, with a 29 " draw length...........





58-63...lbs
250-26"
250-27"
250-28"
250-29"
350-30"
350-31"
350-32"

64-69...lbs
250-26"
250-27"
350-28"
350-29"
350-30"
350-31"
400-32"
here is part of the chart, so what do u think, should i back my bow down to 63 lbs or just keep shooting? i definitely dont want it to hurt my bow

How long will the arrows be?

I thought you had a Switchback?![&:]

i dont think it would hurt it at all...as long as you are shooting good groups dont switch arrows but if you are worried about it get different arrows
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did u not c my post about gettin the new katera

as long as your over 322.5gr of finished arrow weight, you aint gunna hurt your bow....

but, your spine might be slightly off......could cause some issues when it comes to tuning...but theres lots of ways to fix that...last resort is buying new arrows....

also, whats the arrow legnth? many times its different than draw legnth.....to get a true spine reading you need software...those charts just get you close...often close enough...but when your borderline its nice to have software....maybe someone can run your specs on ontarget...but they need more info from you first...

my arrows are 29.5 inches

no[&o].

I ordered the Exact same arrows from MeanV, And I got the 350 spine. I shoot 61 lbs and my arrows will be cut at 29 inches, the only reason i went with that spine is because I wanted to add the 100 grain muzzy inserts, if I wouldn't have gone that route I would of went with the 250's. Your poundage is higher though. If you spine is to weak you can always add weight to the back of the arrows. It will increase your spine but lower your FOC, another option would be a lighter tip.

I would get the 350's if it was me,it is better to shoot a slightly stiff arrow over one that is a little weak,I am shooting 64lbs and a 29" arrow and when I was trying to decide between the 250 and the 350 I shot the 350 and they were putting bullet holes in the paper,They are a tad stiff but I am going to put a 50 grn insert and see how it shoots then,I only bought 2 arrows until I make up my mind.I like a heavy setup and with the inserts I willbe around 480grn for my hunting arrows with close to 20% FOC.

We aren't really answering your question are we. No it shouldn't hurt your bow, as long as you are at or over 5 gpp. The only thing is, that you might not get as good performance with those arrows, as arrows with the proper spine, since they might be slightly under spined. Like I said earlier you can add weight to the back of the arrows to increase your spine, or go lighter up front.

(PS. More technical guy correct me if I'm wrong)