Reloaded about 60 rds of RP and FC brass, 1x, using Nosler 190gr. BTHP with 46.5 grs. of 4064 at 2626 fps. Shot about 20rds, when this round blew, debris came back past the bolt, across the face just below the safety glasses. I was questioning shooting the rest of the lot. I did however with no problems, not used to seeing this kind of failure with the primer still intact, as you can see I count 4 distinct openings. rifle was a 700 Long Range. Anyone seen this kind of failure, what's your thoughts??