Well everything is tuned to perfection and ready for this friday's departure. Arrows are flying like lazer guided missiles ....they just need a target zone. Yesterday, I was able to run some arrows thru the chrono at RMSG. Couriousity, definitely killed the cat, I finally had enough and had to know what these arrows were doing. So here's the deal:
Bow:
60" 53@28 McCullough Griffin LB w/450+ 6 strand string.
(I'm pulling 28.5" thinking I'm around 55#)
Arrow:
CX Terminator Select 45/60
100 gr Brass insert
160 gr head
125 gr steel adapter or
75 gr steel adapter for a 235 gr set-up
3-5" Shields
Weight:
681 +/- 2 grains EfoC....27% 12.4 GPP
635 +/- 2 grains EFoC....25% 11.5 GPP
Velocity:
680 gr arrow ............165 fps
635 gr arrow.............175 fps
Also shot a 29.5" BOP Gold Tip. Arrow weight was 585 gr, 10.6 GPP, FoC 23%.
Chrono'd 185 fps.
So it looks as if for every 50 grains of arrow weight, velocity is changed 10 fps.
Anyway, thought it was interesting, not sure how these results stack-up to the rest of the heap, but i do know that the arrows out of this bow fly true and should have no problem anchoring an elk if given the opportunity.
Mike