Am I underspined???
01-30-2004, 12:26 PM
#1
Giant Nontypical
Thread Starter
Join Date: Aug 2003
Location: The OH-IO
Posts: 7,103
Am I underspined???
Set up is 29.5 inch draw 71lbs out of a cam 1/2.
Goltip 5575 @ 27.5 inches at 380 grains yields on average thru chrony 289.7 FPS and 71# KE.
Goldtip 5575 @ 29 inches at 392 grains yields on average thru chrony 285.6 FPS and 71#KE.
Are the 5575's spine enough for this set up?
Also I will be picking up an extrme vft this weekend. @ 70# will the 5575's be underspined on it? Should I buy some 7595's or is that over doing it?
Goltip 5575 @ 27.5 inches at 380 grains yields on average thru chrony 289.7 FPS and 71# KE.
Goldtip 5575 @ 29 inches at 392 grains yields on average thru chrony 285.6 FPS and 71#KE.
Are the 5575's spine enough for this set up?
Also I will be picking up an extrme vft this weekend. @ 70# will the 5575's be underspined on it? Should I buy some 7595's or is that over doing it?
01-30-2004, 03:42 PM
#6
Fork Horn
Join Date: Feb 2003
Location: Vernon Hills IL USA
Posts: 382
RE: Am I underspined???
5575's 26.75"arrow 61.5ft/lbsKE = slightly underspinned. I don't even think the camo 5575's will work for you, you need the 7595's. It'll only be 20 grains and you'll hardly lose any speed.
01-30-2004, 05:18 PM
#8
Join Date: Feb 2003
Location: Manitowoc WI USA
Posts: 79
RE: Am I underspined???
I just ran you through TAP and show the following:
The 5575 is way to weak even at 27.5" The 7595 @ 28" appears to be a very good match. With the VFT you will also be glad to have the stiffer arrow. My PRO 40 requires a stiffer arrow than the norm.
The 5575 is way to weak even at 27.5" The 7595 @ 28" appears to be a very good match. With the VFT you will also be glad to have the stiffer arrow. My PRO 40 requires a stiffer arrow than the norm.
