Originally Posted by JoeRE

I am attempting to improve the accuracy of a Traditions Pursuit .45 with a 1:20" barrel. I know from past experience it throws most mid-range weight sabots in the 4" group range at 100 yards with 100 gr of Triple seven or Pyrodex but recently have gotten the urge to try to turn that B School gun into a nail driver...when I shoot anything over 100 grains the groups explode.

My question is - who has played around with heavier bullets shot out of a 1:20 twist? I am looking at the 300 gr. powerbelts for one. I also am looking at the 35/45 sabots that MMP and Harvestor have. There are a whole lot of .35 bullets that have AWESOME ballistic coefficients, think I could get them to shoot well out of it? Am I right in thinking those might require some even lighter charges?

I know there are a lot of 1:20 twist smokeless powder guys - any body using black powder with great accuracy?

When I figure out what to try I will post the results...doesn't seem like there is much info on here about this.