i was wondering what a good arrow weight is for a 55lb bow that is shooting 237FPS. I am setting my old martin up for my friend.

Any suggestions?

Here is a question, what weight arrow is that bow shooting at 237fps?

i had a Gold Tip Expedition Hunter lying around and shot it throught the chrono...i was wonder to have more or less weight

It all depends, if I knew the weight of the arrow I could calculate the Kenetic Energy for you and let you know what way you needed to go.

My fiance is shooting a 40lbs bow with a 385 grain arrow at about 200fps and Im sure that will be more than enough for deer at ranges less than 25 yards. You really need to look at what your hunting, how far, what broadhead, arrow etc.

what poundage is it at

For hunting, I won't recommend anything under 400 grains, and I'd use heavy enough points to get FOC up to at least 12%.

I'm not arguing, I'm just asking.....I shoot a 368 gr. arrow @ 310 fps, giving me a KE of 78.5 ft. lbs.....I would THINK that should do it, no? I also have momentum of .50something slug pounds, whatever that is....I forget, what's the formula for FOC??

Go read through the 'physics is fun' thread, mobow. Not to put you off or anything, but I've typed my fingers to the bone in that thread responding to the exact things you ask. My piddies are tired.

As for the FOC formula, I just go to Jackson's and let the 'puter do the work. www.bowjackson.com

Cool...thanks bud.