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?

[Deleted]
 

[Deleted by Admins]

RE: Am I underspined???
 

My personal preference is to always err on the stiff side, especially if you'll be flinging broadheads. Just seems to work better for me.

RE: Am I underspined???
 

I would shoot the 7595's

RE: Am I underspined???
 

I would suggest the 7595's also.

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.

RE: Am I underspined???
 

Unless i'm mistaken i beleive that these are only rated up to 70lbs.

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.

RE: Am I underspined???
 

Thanks for the replys everyone. I will pick up a dozen 7595's this weekend. Thanks again

RE: Am I underspined???
 

I've been shooting 5575's with my 28" at 63#'s on my Golden Eagle and I thought they were fine .I guess I was wrong was I ??

nubo