Thanks Steve O, I did not find that thread when I did a search...a ton of great information.
The JB Weld sounds like its the trick, and I was wondering if anyone had tried stacking inserts for added FOC, and I see they have.
Last weekend I had a pass thru on a hog, but my broadhead adapter(aluminum)snapped off when burying in the ground, slightly tearing the aluminum casing about 1/8" on the FMJ. Of course, my fault for the cheap adapter, but I haven't really looked to see if the insert (hot melt) gave away or just the torque from the broadhead(never recovered)..so kinda hard to call it FMJ failure.
Obviously, it gave me pause...but my gosh do these things tune well.
I REALLY appreciate the help