Mitch,
Doubtful that you will find #2 listed anywhere for .44 magnum.
Alliant does, however, list a 44 Special max load of #2 under 249 grain lead at 4.7 grains, for a velocity of 819 FPS.
If I was in your spot, I'd start at 4.9 and work up as needed. As noted above, it will likely be pretty erratic.
That said, uncertain what silhouette game its for, but, when I shot IHMSA years ago a good load to slam the rams at 200M was a 240 FMJ over 22.0 of 2400.
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-jwk-
US Army '72-'95
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