[John Rogers]

About 25 years ago when I first started shooting with black powder instead of that weird stuff my mentor said "do not rush". He was right as it took me 6 months to work out the correct loads for my Sharps and Rolling Blocks, as many more things affect the grouping at 300 yards or shorter distances. The I sold the cartridge rifles (3) and went with muzzle loaders and the variables affecting my target grouping went up exponentially it seems. again my mentor said try to make some of the items constant and work with what cannot be the same every shot.
1000 yard target shooters are just about the same and the 1 mile shooters are even more critical of the things that can affect shooting accuracy.
Finally it comes down to the shooter and the day they shoot and as some call it "luck".
John Rogers