Up shooting in New York last Sunday. Temp about 18 degrees. I was shooting Eley Classic Game 12 bore 2 1/2" paper hulls out of a Holland SxS with 2 3/4" chambers. I had two cartridge separations, where the paper broke relatively cleanly at the fromt of the brass out of less than a dozen fired. Went bang every time and it was easy to remove the paper from the chambers with a finger. This has never happened before and the shells were from a flat (maybe 2 years old) that I've shot before. A friend who was shooting the same shells (but from a different individual box) from a 2 3/4" chambered Browning had no separations. The shells were stored in my locker, which is dry.
I would be most grateful for any theories from the various Holmes's and Watsons on the board.
