I run 3.9/4.0 Grs of N-320 under a plated “HP”, and it is very accurate, tosses brass at my feet, and is just plain fun to shoot. Runs 1050ish FPS from my 5” Colt .38 Super with a 9MM barrel.Didn’t wait for home this afternoon and loaded some at 4.2 grains n340 and I think I’ve found a winner. Very accurate and good ejection no pressure signs and the cases are very clean. Be interesting to see how they are for velocity.
IIRC, I’m loading them at 1.060 OAL.