LVR and pressure

[Newmexican]

Still learning the mysterious ways of the 6mm ARC, but was a bit surprised by the apparent pressure signs I got recently when shooting handloads out of the Savage Axis II. Using once-fired cases with necks uniformed and full-length sized in Hornady dies, I loaded LVR over CCI 400 primers with the Berger 95-grain VLD to a COAL of 2.250".  I started with 30 grains, with no signs of pressure. With 30.5 grains of LVR, I noticed very slightly increased bolt lift and some primer cratering. Accuracy was so-so, with three-shot groups at just under one inch. I moved up to the 31-grain loads and the first round gave what I interpret was as close to a pierced primer as I care to get, with the primer appearing to have been struck with a small, round punch and enough gas released to darken the hole. Needless to say, I took the rest of those loads home to tear down. Before leaving, I fired a half box of the Hornady 108-grain ELD Match and put four into about .4 inch with a fifth a quarter inch away, but the wind was quartering from behind at about 15 mph and I confess I am still getting used to the rifle. 
In the photo, the two cases on the left were loaded with 30.5 grains, the one on the right with 31. I arrived at the 31-grain load by extrapolating (I know, bad me) from the Hornady bolt gun data showing a maximum of 31.4 grains for their 100-grain Interlock BTSP hunting bullet and 30.8 grains max for their 103-105-grain Match bullets. 
By the way, the two cases at left were from factory loads initially fired from an AR, and I scrounged them up; hence the roughed up rims.
Anyway, I would like to hear from others who might be running the Berger 95s with LVR.