kludge,
I use Missouri Bullets 170 LSWC in my CZ SP-01/.40. Last weekend I did some experimenting in an attempt to find an optimal accuracy load for some informal 25 yard target shooting.
I am using a 12# recoil spring (stock is 14#'s). These are the loads and how they performed from a sandbag rest:
1) 3.0gns VV N310, Wolf SPP, 1.125" OAL = 1.25" @ 25 yards
2) 3.0gns Bullseye, same as above = 1.1" @ 25 yards
3) 3.5gns WW231, same as above = 1.5" @ 25 yards
4) 3.0 Clays, same as above = 2.25" @ 25 yards
I realize these don't use Universal powder, but this demonstrates the accuracy potential of MB's .40 hard cast bullet. I only buy MB bullets now.