I haven't had a single failure with the HCD in my pup and I've put about 30 rounds through it. The "fried egg" primer strikes do bother me though.
Did anyone ever figure out if this was due to a higher pressure or just the different flatter primers?
I think if they were other than standard pressure, they would be saying not to use them in the Rohrbaughs, and the mfg would want to cover them self if they were higher pressure. It may be do to the composition of the primer metal, or the temp generated by the ignition material in the primer. They work fine in my pup, although I no longer use them for carry, not because of the problem just that I now carry 147gr SD ammo.
John