I shot some powder today at 100, using the 410s and sub bases.

3 shot groups

90 FFF 2 9/16"
100FF 7" horizontal string?

Only thing different that I did with the FF was wipe the barrel with lube after loading and reseat the bullet.

I clean the barrel with windex, then two dry patches, then a lubed patch of Bore Butter, fire a cap and load.

I am going to reshoot the FF with no lube afterwards, and some dry ones.

I did find some power belts 295s, 348s and some 405s that I will have to try.