I use Unique.

Note that as far as I know there are no factory 180 gr. SD loads. The most common, and probably the best, SD load for the .44 Spl. is the Speer or Blazer 200 gr. Gold Dot Hollow Point. Next would be the Winchester 200 gr. Silvertip.

Also note that those particular bullets are probably not going to expand at the velocities you'll be able to get out of your gun. The bullet is meant for .44 Mag. speeds. You're better off with a 200 or 240 cast bullet in .430 dia.

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USAF, 69-92
Vietnam, 72-73