In an earlier post on this thread, I said that I use either 4f or Swiss Null B in my pan. Many moons ago, when we lived in Indiana, I was at Friendship and bought a can of Goex 4f for my, at that time, one and only flintlock. I used 4f for a couple years when a friend if mine in our muzzleloading club told me that Swiss Null B was much better. So, naturally, the next time I went to Friendship, I bought a can of Swiss Null B (OUCH!! on the price). This all happened, as I say, many moons ago. In the mean time, I have done a LOT of shooting with my flintlocks and have acquired more of them and, yet, both cans are still nearly full. I can shoot 4f and Null B in my pans for the rest of my life and never use it all up. I expect my heirs will use the last of the powder in those cans. The point being that even though 4f and especially Null B are more expensive than 3f or 2f, you will not have to buy it often enough for price to be a factor. If you put between 3 and 5 grains, that's the normal pan charge in most all instances, you will get anywhere from 1,400 to around 2,300 shots from a one pound can. So, don't let the added price of 4f or Null B be a determining factor in what to use in your pan. If you want to use one of the pan chargers, you will almost have to use one of the finer powders since 3f will not flow easily through the tiny opening in the valve and 2f will not flow at all. But, if convenience is the issue, I'd suggest that in the future, you buy 3f for your main charge and you can use it in your pan and it will do just fine. That way, you have only one horn to carry. I find my little pan charger to not be inconvenient in any way. It just rides handily in the bottom of my possibles bag and can be very easily identified by feel when reaching into my bag....no problemo!