Here's my favorite's:
1) Bullseye- very fast, cleaning burning
for use in light .38 Special & 9m/m loads
2) Unique- good choice for moderate loads
in .38 Special, .357 Magnum, and .45ACP
class. Not as clean burning as Bulleye.
3) 2400- very dirty, uneven burn rate if
not used in magnum applications, ie:
.357, .41, .44, etc.
Footnote: I also have used W-W 630P in stout
.41 Magnum loads, with good success. I will
be trying Universal Clay's in the .44 Magnum
before long!!!
Best Wishes,
Ala Dan, N.R.A. Life Member