In fact, here's a good example of differences in brass... When I was doing load development for my 85 I loaded up a whole heap of 130 vld using 2213sc and when I shot them the very first round (starting load) gave me a sticky bolt, I had measured powder individually for every case and was a bit miffed at getting a sticky bolt on my starting load, decided to fire another and it was fine, then proceeded to fire all my development rounds right up untill I was a full 4 grains above my starting load and got no pressure with any of them, when I went to clean the brass after it turns out somehow I had loaded up a Winchester case as one of the starting load rounds, all the others were Norma
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