Given that a decent diabolo in a decent barrel is capable of one-hole groups at 40 yards, how much more accuracy should we expect?
Slugs are more for longer range fac power. Nothing wrong with standard pellets at moderate ranges. Slugs more like a mini .22lr bullet. With a good hollow point. They do mushroom on impact. As I am using them. Got them in .25 and .30. yet to try them though.