keyshunter

Eldeguello is correct in that most people cannot tell the difference in speed between 3f and 4f in the pan. Sometimes, at the range I think I can notice a difference, but it could be my imagination. I have, however, never noticed a difference when hunting.

Although I usually use 4f in the pan when hunting, on rainy or very damp days I use 3f. Fffg does not seem to absorb moisture as rapidly as 4f, and thus I do not need to change my prime powder as often.