A guy told me last night(a guy who builds is own bows) said that shooting carbons will weaken the limbs of traditional bows. He said it is like dry-firing a bow and the limbs will not fair well. He said to shoot wood or aluminums. I just want your guys' input.

Weight of the arrow, not material involved is what matters.  You can use carbons with weight tubes or heavy tips/inserts to get your weight up to what is recommended for your poundage.  As with any arrow, you have to tweak it some for tuning.

I don't buy that. Make sure your carbons are heavy enough to meet the minimum requirement of pounds per inch that the bowyer recommends and you should be fine. I like mine around 10 grains per pound or heavier for hunting.  

He is under the assumptions that carbon shafts are lighter compared to aluminum or wood, and he is usually correct.  However, when weight is added to the carbon shaft via weight tubes and/or front/tip loading we are able to create an arrow as heavy as we want it.  I'd look more at the grain scale than the shaft material for safety concerns.  Take care, Matt

Its all in the weight ,not the material.GPP means alot.

Ask him if 610gr. is enough for a 55#@28" recurve? Is over 11gpp enough?

Just go by the weight of the arrow in grains per pound of draw weight.Most bows are marked at 28 inches. You can add or subtract about 2-3 pounds per inch for any draw length unless the bow really stacks.

Most any bow will handle 9 grains per pound.So a 50@28 needs a 450 grain or more arrow.

Some bows will vary so it is best to ask the bowyer.For example I shoot aluminum risers with olympic limbs that will handle 5-6 grains per lb.I like fast, flat shooting arrows for 3D.

A 650 grain arrow weighs 650 grains no matter what it's made of.

HAWGWASH!

What Russ says.

Buy the woodgrain carbons and the bow will never know.  

What about carbons that aren't 8gr per pound(not what i shoot), what effect if any would that have on the bow? I thought i read on here somewhere that one guy dryfires his bow some to see if it will hold up....thanks for the replys

An expensive way to test your equipment that won't increase it's lifespan.  As stated before, can increase weight of carbon shafts with tubes or tips.

A bowyer may dryfire a bow to see if it will take an ACCIDENTAL dryfire.Some olympic limbs are dryfired hundreds of times for the same reason.That doesn't mean that you should ever dryfire intentionally.

You may get by for a while shooting too light arrows.YOU MAY NOT.

You can get a stiffer spine and add weight or use weight tubes.

HAWGWASH!

What Russ says.

My Bow MFG says that it's ok to shoot a 350gr out of my 55# @28" Recurve...6gr per pound min.....

I shoot 450 grain carbons out of one of my whisperstiks @ 55lbs. It has seen about 10,000 shots with no ill effect, and its still quiet.

Like everyone else said its the weight of the arrow. Bob Morrison built my favoret bow and he shoots carbon. WEIGHT not the materal.