Anything over 240-250 fps will do the trick!

Just chronoed mine today. My Trykon at 70#'s shooting a 29'' Carbon Express Maxima averaged 288 fps and my 61# Tribute shooting a 29'' Beeman ICS hunter averaged 271 fps.
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I don't think so.
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Weight of the arrow is the deal. Ya'll are comparing apples, oranges and sour grapes. I bet all these speeds talked about here have as much as50 grain difference in arrow weights.

My Diamond Victory was recently chronoed at 259fps shooting a 412gr arrow at 65#s and 29" draw length. I have since removed a peep sight, a kisser button, and a nock ring from my string. I will go back and chrono again when I'm certain of the final set up. I may put a nock ring back on for a kisser.

Anything under 500 fpsNo I would say anywhere from longbow speed to about 315. But hey its just my opinion

mines really slow due to 50-60 lb limbs and a 27.5 draw length

That's a good speed for that bow and poundage IMO.Most of the 300+ bows,are not gettingover 300fps...ready for hunting unless they are using the lightest arrow they can..My Diamond is rated at 316 IBO,and with a 375 gr arrow shoots an average of 290fps.That's 26 fps less than IBO.That's at 70# too.

Yes my arrow is 30fps faster,with a 15gr lighter arrow,but my bow has 5 more pounds of pull,and a very very hard cam.I am actually shooting around 5.3gr per pound of pull.You are shooting an arrow that weighs around 390gr...which is 6gr per pound of pull for a 65# bow.If I were to be shooting an arrow that was 6gr per pound of pull(420gr arrow),I would probably be shootingcloser to280fps.

6gr per pound of pull is what I have always been told is a good weight for a hunting arrow.Not too heavy not too light.Most of the people I know that shoot arrows that weigh 6gr per pound with60# bows(approx. 360gr arrows)are in the 245-255 range.,and friends shooting 70# bows (approx. 420 gr arrows)are around the 275-285 range....

So I would Imagine a 65# bow with a 390gr arrow would be right down the middle.Probably 255-265 depending on bow,cam,accessories...etc.

Your 65# bowshooting a 389gr arrowat 260fps is pretty realistic to me.That gives you 58lbs of KE....I would be very pleased with that.

If you did want to go lighter say to around 350gr,you could be knocking on 270fps pretty easy IMO.So,I wouldn't be down about shooting 260fps with a 40gr heavier arrow.

I would stick with the current set up for hunting.

Hope I helped.

My Tribute is shooting 294 with the arrow I will be hunting with.

Ya that is a very acepable speed will definitely put down most game