Read the whole thread.
You're making great progress.
However, I think your velocities are a bit puny. If'n yur gonna shoot with the geriatric set yur gonna have to step things up a bit.
Above was tongue-in-cheek but only a little....
Ever think of giving 50 BMG a try. With bullets on the heavy for bore side 50 BMG came into its own, over Retumbo, H-1000 and US-869 300 OTMs in a 338 RUM.
PS: ya best be getting it together before you shoot out that barred.
Its a fun thread. Keepr goin'.