Got the Browning BPS 20 gauge with the rifled barrel and scoped. It exceeded my expectations. Used two hull brands Winchester and Remington and they were from factory slug loads. The slugs I used are the ThugSlut from BPI. I'm very pleased with them.
Hulls: Winchester and Remington used in their slug loads.
Primer: Winchester 209
Powder: Unique 16.5 grains
Velocity Average: 1101 fps for five shots
ES: 55
SD: 21
Temperature: 44 degrees
Altitude: 2200 feet
Humidity: 43 %
Wind: 5 mph head on
Groups size: .750 inch
Slug Weight: 7/8th oz
I'm very happy about the load and group size. I had the different brands of hulls mixed and the velocities were different betwee them enough that I feel if I had shot the one brand the ES and SD would have been lower, but hey this is a shotgun not a match rifle! No leading and those ThugSlugs are soft! They have an intregral wad sort of like a Brenneke.