Last year I wanted to hunt with my English fowler that had been shooting great but all of the sudden it started having way too many fliers so I put it up and used my .54.
Yesterday I tried it out again looking for the error in my ways that caused it to shoot poorly.
I realized I had switched from a weighed charge of 1F to a measured charge that really weighed 85 gr(senior moment).
I also think I had too much lube on my patches when the balls started spraying.
I was shooting at 35yds as this is about as far as any of my shots will be where I hunt.
I ended up with 100gr of 1F, a wool wad and 486 gr .690 ball patched with .025 denim. I lubed with mink oil but used a heat gun to melt the lube into the patch so there was less on the surface. I swabbed with a wet and dry patch after every shot.
The gun I built, it does have a rear sight and is jug choked. The gun has a 38" D weight, Colerain 72 cal swamped barrel. The gun is primarily my turkey gun.
2" bull at 35 yards, the fliers were before I started using less lube and melting it into the patch with a heat gun.