Give you an idea of what you could expect.I have a .440 spine and that tunes perfect with bareshafts and broadheads.I shoot ACC's and today just for giggles shot my FMJ 500's out of MY BOW.The diameter and fletch is really close so subsequently the up and down impact out to 30 was very similar with broadheads.I was surprised to see that even at 30 the arrows impacted about 1" to the right of fp's.


I checked them through paper and I was also surprised to see that they shot bulletholes.

I have top of the line arrows,an arrow rest that is up untill the fletching gets to it for ultimate guidance.The bow has been tuned to perfection on Hooter shooter and in my hands.

What I am saying is if you have everything perfect,you might be close enough on spine to get acceptable flight.Not sure how they would penetrate for me at lower poundage.


My spine range wasn't that great and you are about as close as I was with the 500's so they MIGHT work to your satisfaction.