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250 spine RIP XV. Help me choose my components and points

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59 views 4 replies 2 participants last post by  Brysn H  
#1 ·
My pro shop cut and fletched these for me. They look sweet as hell don’t they? Those yellow FFP 360’s on a yellow RIP XV with yellow nocks, I really like the look.

But, I messed up. I went and bought too many components for too many options to build arrows.

points:
Exodus 100 grains
VPA single bevel 200 grain
Slick Trick Shift SB 125 grain
Grim Reaper Mini Mag 4 blade 100 grains

inserts:
Iron Will titanium hit (15 gr)andcollar (10 gr)
No name 100 grain steel half out, of quality material and construction

Footers- Solid carbon fiber rod, 13 grains per inch, i would probably use no more than 150mm long (almost 6”)

I am trying to build a high foc penetration-enhanced arrow as light as possible. I have the points and components here to build arrows up to about 20% FOC on these shafts, and still keep it under 500 grains- about 485 actually.

But I could also build a 411 grain arrow with a titanium HIT and collar, and a Slick Trick Single bevel. I would loctite the heads to the HITs, and put it all together with Scotch Weld DP 420. Glue the heads in permanently with the components. Take that, and go hunting for humerus balls just to prove a point.

The old standby would be an Exodus on a 100 grain insert. About 458 grains, with + or - 18% FOC.

And the no compromise arrow would be the Iron Will components with the VPA points. An EFOC arrow with a monolithic S7 single bevel. Less than 490 grains, but no one will be surprised when the honed and stropped head slices a humerus ball. Feels almost like cheating.

Or, any combination of these with internal footers to boost FOC and structural integrity.
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What do ya’ll think?
 
#2 ·
Another option I have seriously considered is to set all these shafts and components aside, and just put a Iron Will 125 buff and deepsix hit inside a 4mm Easton Axis 250, and stop worrying about FOC and stuff. This shaft comes out of my bow tuned, with point weights from 150 all the way up to 305.
 
#3 ·
If it were me, I'd start by picking a single point weight first--either 125's or 150's. Then I'd choose whatever components to get the FOC and total arrow weight I want. Heavier broadheads tend to be slightly tougher and sometimes also have a little more cutting diameter or surface than 100's. Just my $.02.

I think around 485 grains is an excellent weight for any critters in N. America.
 
#4 ·
I just put the 100 grain halfouts in all of them. That and a 125 grain point, or 100 grain point with a 25 grain collar. So i can use everything but the VPA’s at 225 grains point weight.

Could have done the VPA’s with the hit and collar for the same 225 grain point weight.

Only concern is that I might be pushing a hair too much point weight to tune at my draw length and draw weight.

I might get a dozen more to mess around with.
 
#5 ·
Tested these arrows.

Broadhead flight test with 125 grain Shift SB and 125 grain points:

Broadhead flight test with 100 grain Exodus and 100 grain point:

Zero penetration impact test. Steel insert broke off righg behind the tip of the threaded end of the field point. Did not mushroom the shaft. Pushing close to 90 FPE with this set up:

I used Scotch Weld DP420 epoxy. When I use this stuff, it seems like I don’t get a mushroom tip on a hard impact. This time it snapped the tip off the insert.

I have experienced similar failures on hard impacts with Easton’s titanium 50 grain 4mm halfout. That Scotch Weld DP420 has got so much shear strength that shock won’t break it loose. So the point of failure changes. If this was a good sharp broadhead against bone, I have no doubt it would slice or shatter that bone and penetrate deeper.

I am pretty happy with the way it turned out. I am really pushing the limits of the dynamic spine of this shaft. But it tunes out without adjusting the bow, so I can still shoot the Eastons. Which is great because I have got plenty leftover.
 
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