What I am loading for is Service Rifle and CMP Garand Matches where adjustable gas locks are not acceptable. The plan is to develope a lite 30.06 load with Nosler CC 155 BTHP. I used IMR 4064 with loads from 43gr to 47.5gr. (1/2 gr increments)
Let me see if I'm getting my head around this.
A faster powder like 4895 will burn completely in the cartrdge, where as 4064 is still burning as the bullet travels down the barrel.
I better do some more reading.
NRA Life Memeber, NRA Certified Rifle Instructor, RWVA, CMP, ISRA