I punched the STS hulls, 209P primers and Red Dot into the recipe maker at Alliants website. There were 23 recipes. So, I suggest you do the same at
http://recipes.alliantpowder.com. If you also included a brand of wad, I could have come up with just a couple.
Here's two using Duster wads (i haven't tried them yet, but others here seem to think their great):
Rem. 209P, 17.5 grains Red Dot, Duster Green - 1,200 FPS and 10,000 PSI
Rem. 209P, 18.5 grains Red Dot, Duster Green - 1,255 FPS and 10,900 PSI
I generally use Federal 12SO wads. Here's three recipes:
Rem. 209P, 18 grains Red Dot, Fed. 12SO - 1,200 FPS and 9,000 PSI
Rem. 209P, 19.5 grains Red Dot, Fed. 12SO - 1,255 FPS and 10,600 PSI
Rem. 209P, 20 grains Red Dot, Fed. 12SO - 1,290 FPS and 10,500 PSI