I dont know where everyone is getting the idea of the dampened APP powder thing. Ive used it on damp days, rainy days, snowy days, etc. Ive never had any problems with it not going off or any delays in firing. It works like any other powder Ive tried and it is the cleanest I have used to date. Someone must be letting rain or moisture go down their barrels for this to happen. Any powder will get wet and fail if you allow moisture to get to it. A piece of tape over the barrel wil prevent this from happening but I have never used it. I just dont hold my barrel skywards if it is raining or snowing which makes common sense. As for the primers i have always used the winchester muzzleloading. I did use federal 209 primers for reloading before that. I may try some of the remingtons again this year just to see how they fare to the winchesters.