A couple of weeks ago I had prepared a batch of cartridges for bullet seating depth tests. They were all loaded except for seating the bullets. My plan was to adjust the seating depths depending on the results I was getting. My early results were so good that I didn't need all of the prepared cartridges for that shooting session. The balance of the cartridges (without bullets) set (covered to keep dust out) for a week or two (high humidity) before I finished loading them. When I did finally shoot them, the bullets did not group well. Very different from previous shooting sessions with the same recipe.
Since the bullets were not seated in the cartridges in a timely manner, did the powder (or primers) in any way deteriorate or change due to exposure to the home environment? Other loads shot that day performed as expected.
Since the bullets were not seated in the cartridges in a timely manner, did the powder (or primers) in any way deteriorate or change due to exposure to the home environment? Other loads shot that day performed as expected.
