The premium sabot slugs are a waste of money out of a smooth bore barrel. They are made for rifled barrels. You would get better performance from rifled (foster) type slugs.
To get started I suggest a piece of patterning paper to get started so if your scope is way off at least you'll be able to see where it's hitting.
To get started I suggest a piece of patterning paper to get started so if your scope is way off at least you'll be able to see where it's hitting.