"Hi-ebber, and day is always a hi-ebber" I have always liked that.
I am the proud owner of a golf ball mortar from one of our beloved GB brothers and have no bigger than Goex 2 f, would even use it the 31 Colt that is about the smallest, going by Elmer Keith experience. In Sixguns he spoke of his early years and using 2 f for his .36 cal colt percussions.
It will be great to hear back about you range day, I have a new to me Musketoon that will be getting some quality time on the range soon.
best wishes