Thanks Bob, I have two 50 cal conical barrels I have been playing with off and on for a while ,long range for me would be around 150yds ,I have a 54cal and a 58cal round ball barrels that i would like to turn one of them into a good solid 125 yd gun,the 54 cal i have is not slow enuff i don't think 1/48 and the 58cal is 1/60,been thinking about a GM 54 with 1/70 twist
There are 200 yard matches for round ball rifles at Friendship.I don't know
if these are heavy bench guns or hunting/target rifles and it wouldn't make
a big difference.I know good accuracy is obtainable at 200 with a round ball
and I shot my own 58 caliber flintlock with GM barrel at 260 yards which is
a measured distance at the range I use.I used 75 grains of DuPont 3fg.
A 1:48 is NOT a fast twist.A 1"18 IS a fast twist.The 58 caliber Springfield
used a 1:72 and used a long hollow base bullet.I don't remember what the
58 caliber GM's twist was.Your 54 caliber barrel will do fine at 125 yards.
I long ago gave up on paying attention to anyone that says that a specific
twist is a specific caliber is no good.I shot my original Whitworth with a
patched 450 round ball over 40 grains of 3fg and made 4 and 5 leaf clovers
at 50 yards easily.Same thing with a Bill Large 1:36 45 caliber.Load it lightly
and patch it tightly works.Don't take any words as gospel on these guns
until you prove to yourself what is said about them.
Bob Roller