Flattest trajectory or heaviest arrow
#11
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.
Gees, I was getting speeds like yours back in the late 70's shooting heavy aluminum arrows.
#14
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.
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.
#15
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.
#16
Fork Horn
Join Date: Feb 2003
Location: Vernon Hills IL USA
Posts: 382
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.