Can anyone verify my suspicion?

[druz]

Took ol', well actually I have yet to name my 380, out to the woods this weekend to procure some sweet, sweet venison...

Used the shooting / sighting range at a friend's camp and was drilling spots out to 60yrds with the NAP 170gr field points...

Swapped out to the NAP F.O.C.s and started at 30yrds with the same bolt / BH was roughed in at the house @ 20yrds. I was a tad (.75") low / right. Adjusted the scope and it went 4" left and 3" high. Tried two others of the same combo I had yet to shoot and they were on target. Took the first (one with the most passes through targets) BH and moved it to one of the on-point bolts. Had to find it down range almost at 60 yards. TOTAL high / right miss.

Here is my theory: While cleaning out leftover target foam and having been shot almost 10 times, the retainer in the original BH got loose and was letting one blade open upon firing. This resulted in an imbalance and wildly erratic flight.

Going to take all the BH's off when I have an opportunity, put the field points back on and go from there...

At least I didn't see anything in the woods worth shooting this weekend...

[UPSMAN]

Just another reason to shoot a quality FIXED blade head.

[druz]

--- bought a set of Slick Trick 150gr from Bass Pro on the way home...

[Normous]

It has been verified by NAP that it is not suggested to open and close the FOC numerous times because it wears out the clips. In the past I used the FOC as a show and tell subject but not anymore.

I wired one shut with thin diameter stainless wire (added 8 grains) to practice with. Epoxy will do the same.

If the price is right I may buy your remaining FOC's if they are unused with 100% clip retention.

[druz]

Thinking of using some heat shrink / o-rings to secure them... Sounds more like a P.I.T.A. in the long run... I guess a little trial and error never hurt anyone...

[georgiaboy]

I shoot 125gr spitfire practice head's when sighting in for hunting season. They hit within a 1/4 " of the real thing at 40yds.
Once i'm dialed in i hunt with confidence! I used to sacrifice a broadhead but don't even bother anymore.

[UPSMAN]

--- bought a set of Slick Trick 150gr from Bass Pro on the way home...

Smart move. The Slicks are quality made heads and will do you right.

[Tom]

It has been verified by NAP that it is not suggested to open and close the FOC numerous times because it wears out the clips. In the past I used the FOC as a show and tell subject but not anymore.

I wired one shut with thin diameter stainless wire (added 8 grains) to practice with. Epoxy will do the same.

If the price is right I may buy your remaining FOC's if they are unused with 100% clip retention.

Any mechanical head which uses clips (or dimples) to hold the blades closed "should not be opened or closed unneccesarly" as the clips loose their ability to hold the blades closed, just like Normous said.

Tom