My Speer no.12 manual shows loads the 240gr lead SWC at 841 FPS from a 3" barrel and they say these are below 15,500 psi , the Brian Pearce 44 special article his category 2 loads 22,000 psi he exceeds 1100 FPS with a Lyman 250gr Keith (I have a 4 cavity of that mold) in a 41/4 " barrel.
So I think I should be able to work up a 900 to 950 FPS load for the 3" with a 250gr keith at lower pressure than the Pearce's category 2 loads . I don't want to beat up the Gp100 for a few FPS with non expanding boolits , just not needed for my use.
I need to cast me some Boolits.