I agree. A good slug barrel will certainly help. You can get good accuracy from a smooth ore too just be sure to use a rifled slug. Rifled barrels are still best though. The 20 is a great round though and many of the new loads are better ballistics then a 12ga. If you get a rifled barrel the Hornady sabot slugs work great otherwise the Remington and brenneke rifled slugs shoot good in the smoothbore