Well I took a 1" lug screw and cut it down to .720" and rounded the edges, installed the o-ring, and bottomed out the new screw, and range tested some 85 gr noslers.
The 2 loads were 50 gr H-380, and 54gr IMR 4350.
The H380 load was poor in every aspect!
The IMR 4350 load Yielded a .38" 3 shot group @ 100, and a forth shot opening it up to .780.
The bullet is seated just barley in the neck and still not touching the lands.
very deep chamber throat
I will load up another batch of the 4350 load and chrony it as well as post a 5 shot group.
This is my first .25-06 and is is a very pleasent gun to shoot.