The proc on this weapon is rather interesting to me. It doesn’t seem to proc as much as other weapons with proc's.
I also use Wicked Shank:
https://everquest.allakhazam.com/db/item.html?item=17348
The shank proc's a lot more then the Bonechiller ever has. I can go threw whole fights with the bonechiller never procking, but have yet to go threw one fight where the Shank DIDNT proc.
I don’t know if they program weapons to proc more then others... but the bonechiller doesn't hardly ever proc.
Testing was done while raid buffed, with max stats, even Dex was maxed with both weapons.
/shrug