It might be, big issue (I think) would be getting enough of it in the case.
Same problem I'm having with Varget. I've never worked with 4451 so don't know how fine it is, local Cabelas didn't have any on the shelf when I stopped by after work today.
Honestly, will probably just load the rest of these and roll with it. A lot of irons in the fire at the moment, been loaded up on OT and season right around the corner has me strapped for time bad.
Shooting as well or better than I can anyway, typical group:
Depending on how these do on deer, it's pretty likely that I'll switch to 140 VLDs or 147s after I burn these 123s up.
Good luck with the bears!