I did a bit of research an opt for the rifled barrel w/ a cantilever. I am not an expert, but I was told that the cantilever is a better mechanism for connecting a scope because the reciever takes the blunt of the recoil, behind where the scope is mounted. I have been told, but not proven yet that I should be able to hit a paper plate at 150 yds. with the rifled barrel. I was shooting 2 inch groups last time out at 75 yds. The gun is a blast to shoot, but at $3 a hole its a bit expensive. If you already own a 12 g. you may be able to just buy the barrel. One thing to note, the recoil is quite substantial. Not like a punch in the shoulder, but the whole gun wants to lift up. Last time out, I noticed the barrel coming back down and bouncing (very lightly) off of the bench. Its controlable, and very fun to shoot.