Roskoe,I have found that the powder can make that kind ofdifferance, now I always take some Pyrodex [RS for rifles] to use as a standard because it is the least touchy of all the subs. I have had problems with APP and Gold collecting moisture and then shooting all over the place till its dried out in a dehumidifier; of course it is very humid where I live on the edge of Greers Fairy Lake[ the walleyes here make up for it though. Lee