Winchester Ball 680

[Ky Greg]

Is this powder suitable for loading .223?: ???:

[fourarmed]

Be a little on the fast side for full power loads with jacketed.

[unique]

I found wc-680 and 223 incompatible. I was loading quite mild and was getting very erratic pressures. Stopped after that.
That's a common problem with fast for caliber ball powders.