RE: Flattest trajectory or heaviest arrow
 

I'd like to know what bow you are shooting. 27" draw and 60lbs, shooting a 325gr arrow should be getting a lot more than 216fps. Most bows I've shot at those specs are getting around 250-260fps. I just got a Martin SlayR and it's 27.5", 55lbs, 282fps with a 310gr arrow. Hunting setup is a 330gr ACC 3-28 doing 270fps.

Gees, I was getting speeds like yours back in the late 70's shooting heavy aluminum arrows.

RE: Flattest trajectory or heaviest arrow
 

PSE Fire Flite 33. That is not the setup I have now with the 60 lb. That is what I would use hunting.

RE: Flattest trajectory or heaviest arrow
 

With a speed of 216 and that arrow weight just steer clear of mechanicals. A good broadhead and you`ll be fine on deer sized animals.

RE: Flattest trajectory or heaviest arrow
 

Mike,does your spread sheet represent actuall realworld chrony readings on different weight arrows or is averaging out from a certain arrow weight chrony reading.

Basically,have you actually tested the spread sheet with actuall well tuned arrows at diferent weights and speeds.


My experiences show that you will not see a decline untill MUCH further up the arrow weight scale.

RE: Flattest trajectory or heaviest arrow
 

It's based off actual chronograph speeds for my bow. Obviously, it's not perfect, but it is pretty darn close in my experience. It's not to be taken as gospel, but it is just a rough guide.

RE: Flattest trajectory or heaviest arrow
 

At that draw length and weight you should be able to get plenty of spine out of the 350 grain arrow. Since the speed should not be critical a fixed head will be easy to tune and you'd be good to go. I don't think that penetration will be greatly enhanced by going to 400 grains in this case so I'd take the slightly flatter trajectory.