You made me curious, and I'm glad you did.  Got out my .314 version of the 30H and something corrosive had got into one of the cavities.  I was able to clean it up, but glad it didn't sit anymore!  Here's how the .314 version, with its .305 ogive, would throat up in one of my Krags.  Bands on the .314 version actually drop .316 with my alloy.  I don't know how thick powder coat is, don't want to know, I have enough steps in the process as is!  OAL is 3.111", but still won't feed, not even from my 92/96 that feeds spitzers good.