Loose fit is fine with me. I am not looking for clover leaf groups at 50 yards. I am fine with 1-2 inch groups.
My optimum shooting days were from the late 1950's until the 1969,the year I got married and then after
1972 when the 2nd son was born I didn't have time and a work schedule interfered and other interests like
planes got involved along with paying close attention to 2 growing boys.
When I shot a lot,any round ball gun with that would not make a clover leaf at 100 yards was a failure no
matter whose barrel it had.All the barrels by Bill Large would if I did my part.I had exceptional eyesight then
and the 100 yard target was easy to see.I used a tight patch and ball combination such as a .575 ball and a
patch that was a cleaning patch for the M1 rifle that I bought by the thousands from Wes Kindig and used a
lube called "Blacksolve" which was a concentrate mixed with water.Tapped the ball with a starter and light wood mallet and it went down easily.One day at a match when using a 50 caliber rifle I ran out of .500 round balls
and one of the shooters gave me some .490's.I was skeptical but shot them with no change in accuracy.
Bill was surprised when I told him about this.
In 2008 I finished a 58 caliber flintlock rifle,a project started by someone else with a GM barrel and used the
.575 tightball combination from years earlier and got good results at 100 yards with my then 72year old eyes and poor sights on the barrel.Just for hoots and giggles I tried some .562 balls from a mould I had and was surprised at how well it shot and a small child could have loaded it.My powder charge was about 80 grains of DuPont 3fg.I remember Tom Dawson telling me he shot old guns using the balls from the moulds that were with them and they were "2 calibers undersisze" with good accuracy and loaded easily.
There it is,one geezers expaerinces with round ball guns over a long time.
Bob Roller
If I ever make another round ball gun it will be a 40 caliber caplock,English style with a barrel 7/8x 34 and the best possible sights.No rod or rib and a fast lock.