Part #4425 translates to the .44 caliber CL-SIL bullet. It does not look like that. i have never seen this bullet. According to the Hornady site it is a short fat bullet. Maybe the SIL means silhouette.
Never saw that thing before... WOW what a nose on that thing.
__________________
"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, a total wreck, screaming Yahoo, with a big smile on your face."
I tried to call right after I saw your post - but know answer... be interested in what you find out... but one problem it is not built for hunting it built to shoot at metal silouettes. We have a silouette range up north in the CDL area but i have never stopped to shoot there.
__________________
Keep on Shooting Muzzleloaders they are a Blast
I'll let ya know, It just looks from the picture that it is a hollow point sort of like the copper barnes setup. If so, I'll buy a box just to see what it will do for speed and expantsion.