Arrow spine Victory VAP

[iam4man]

I'm shooting a VXR 31.5 with a 75lb mod at 28" draw using Victory VAP Elite .300 with 29" of carbon (not counting the 34 grain outsert) with a 100 grain head. The arrows are coming in at 418 grains. I would like to add some weight and was thinking of going to a 125gr head but according to their calculator that puts me right at the edge of .300 and right at a .250 spine.

I'm wondering if it being that close from .300 to .250 is going to matter on being under spine. If I adjust my bow weight to 76lbs it says I need .250 and at 75lbs it says .300.

 

[Mighty Mouse]

You could trim your arrows down a bit if you're worried about being underspined.

 

[Zac]

I think with that shaft you could get away with substantially more weight up front. I was shooting an 83 lb bow with a 250 at 29 inches ctc out of a 30 inch draw with 270 up front. You can usually get away with a spine under what would be seen as normal on that shaft. Also Mathews nock travel is so good that being underspined a little is not a huge issue.

 

[Dexter Grayson]

I’m shooting your exact setup. My 300 spine VAP arrows are 28” ctc, but I run stock 50gr. half out with 125gr head.

 

[bwilsonj10]

So, the Victory spine calculator hasn't been working for me all day yesterday and today as I try to order the first set of arrows that I plan to assemble. Any recommendations or chance someone could get the tool to work and throw in these settings?

- Bowtech Solution, comfort setting @ 72# ish, 28" draw, 27.75" arrow length.
(The edge of the shelf is 27.5" for me- I know, that seems long. Maybe my string has some stretch because it needs replacing)
- Victory VAP Target V1 .166 arrows
- Victory VAP Shok Alumimum insert (35g), standard 125g FP for 3D and Styker V2 125g for hunting

I'm guessing 300 spine but wanted to verify before spending the $150.