Well after a long wait I finally had time to work on a load for my rifle that generated the question in the first place.
I Chose to start with Retumbo, Norma Brass and 130gr Scirocco IIs and Federal Gold Medal Large mag primers.
Started with a ladder test at 400yards which didn't show much varation in vertical spread (2.5"). I started at the minimum and worked up in 0.5 grain increments to 1.0 grains over max - no presure signs of any kind.
With such a small spread it wasn't possible to identify any nodes so I decided to settle on testing three loads more thoroughly - 0.5 grains under max, max and .5 over max. They all looked good with 0.5 grains over max looking the best. Velocity was a bit under book but I can live with that.
I plan to spend a little time fine tuning the bullet seating depth to see if that can improve upon it. but all in all very happy with where I'm at.
I Chose to start with Retumbo, Norma Brass and 130gr Scirocco IIs and Federal Gold Medal Large mag primers.
Started with a ladder test at 400yards which didn't show much varation in vertical spread (2.5"). I started at the minimum and worked up in 0.5 grain increments to 1.0 grains over max - no presure signs of any kind.
With such a small spread it wasn't possible to identify any nodes so I decided to settle on testing three loads more thoroughly - 0.5 grains under max, max and .5 over max. They all looked good with 0.5 grains over max looking the best. Velocity was a bit under book but I can live with that.
I plan to spend a little time fine tuning the bullet seating depth to see if that can improve upon it. but all in all very happy with where I'm at.