A little story:
Years (make that decades) back. I made a reloading mistake that made the back of a 30-06 case look like it would accept a shotgun primer. The rifle had a double heat treat '03 receiver with a NOS Remington 03A3 bolt. I had fitted the bolt with the strongest string that could be assembled to the striker assembly with strong hands. You could definitely feel a large difference in cocking effort. The firing pint tip was well made, and it was an excellent fit in the hole in the bolt face, which was well formed with a square edge. As some of you may be aware, Springfields have long pin falls and very heavy pins. The point of this is that when I examined the primer (which had fallen out of the case when the bolt was opened) it was not pierced or cratered. I believe that the inertia of the heavy firing pin at the end of a long fall, combined with the maxed out spring, and the fit of the pin tip in the bolt face were the reasons for the condition of the primer. I am not suggesting super heavy pins, extraordinarily long pin falls. or springs that are so heavy to cause rifles to move on their bags when they are cocked, but rather would suggest that if any of these variables get too far out of line that problems can ensue. I have shot hot PPC loads with a light pin in a Viper with a 19# spring. The pin fit was good, and I believe that the .062 pin tip diameter allowed me to get away with a combination that would have given me blanked primers with a larger pin tip diameter. I will say that the pin tip dents in the primers are shallower than other rifles' and I believe that this is an indication that the pin may have been backed up under firing pressure, but not enough to cause blanking. I have seen this with the stock pin as well, with no associated problems. As an aside, I am currently running the light pin with a Tubb double spring setup that has a cocked weight of 25#, takes less effort to cock than a stock Remington spring, and has reduced cross hair vibration during empty chamber dry firing to nil. The rifle shoots with this combination, and there is less disturbance in the bags as it is cocked, because of the reduced effort required at the top half of the bolt lift. Afterthought: another thing that can cause blanking, without excessive pressure is excessive cartridge "headspace" (gapspace?). This can interfere with support of the pin strike dent during firing.