Thread: What in the world?

Greetings Moa Hunter,
Not quite. The primer backed out of the case just means that the pressure is not high enough to stretch the cases. I have not noted any leakage with backed out primers. We are only taking of .1 or.2 mm backed out, just enough to feel or see if you look closely. A leaky primer is almost always the result of a loose primer pocket from a far too hot load current or previous. Even with cases that have been expanded beyond further use (not in my loads in case you are asking) the primers showed no leakage. An interesting thing I found when using cases snug from previous loads with reduced loads is that the cases chambered easily after the reduced load was fired. This supports the suggestion that cases used in reduced loads should be kept separate as the case head space may increase slightly at each firing.
Regards Grandpamac.