Accurate 1680 is a good powder for 17-20 and even the 25grain pills. IMHO
20grain pills and 12.4 grains 1680 was best for my loads with CZ rifle.
Don't use Lil'Gun. I found
Lil'Gun to be extremely
hairy, and spikes velocity and pressure quickly. Hogdon will say 10g is max for the 20g bullet, but anything past 9.3 grains was way too much for me. Just my opinion here, and my experience. YMMV
Vmax, Dogtown, NightmareXtreme, bullets all work fine too. I found that the Hornady 25g HP's to be very accurate at around 3200fps, amazingly so
