I have no grain weight measuring devices. With that said, I would like to know how many grains are lost when sharpening broadheads. Specifically, how many grains are lost when sharpening a glue on STOS 160 grain 2 blade broadhead? Ditto for a glue on 2 blade Tusker 155 & 190 Concordes? Essentially, after sharpening, would a glue on 2 blade STOS 160 weigh around 145 grains?

Out of interest, I'd like to know if it's really that much of a difference?

In all the years I've been at this...I've never really cared to measure.  I figure what I take off sharpening I put right back on with the glue.

at most I would say 5 grains

QuoteOriginally posted by Terry Green:
In all the years I've been at this...I've never really cared to measure.  I figure what I take off sharpening I put right back on with the glue.

I completely forgot about the glue.    

I've compared some old broadheads with brand new ones and there is a a visible difference. Not much, and certainly not enough to matter. At least to me.

The STOS has an excellent grind right out of the pack and I wouldn't figure on losing much of anything on those.  Tuskers and other heads that need more work will lose a little weight in the sharpening process, but you'll never notice the difference if your bow is tuned.

But to answer your question, to sharpen up a double bevel head, generally I lose 5-10 grains.  If I make a double bevel Tusker a single bevel, it's usually 10-15 grains.  Again, in actual application you can essentially ignore the difference.

I pretty much agree with Slowbow and Dave, particularly about there often being 10 or more grains variance right out of the box.  I tend to take a little more off the three-laminated area tip on the STOS and tanto the tip, generally losing 8-15 grains on a 160 grain head.