Yep Paul's right.I just bought a 20gaH&R Ultra Slug andI love it.I met a guy last year who had one,and the deer in his truck thought it was plenty of gun.The H&R 20ga is heavy,I could only imagine how heavy the 12ga H&R is.The gun is well balanced though.It is accurate as well.Very little recoil.As mentioned in some other posts the 20ga seem to be a little more accurate.The H&R 20's are 1:28" twist,and the H&R 12's are 1:34" twist.From all of my research it seems like the faster turning 20's like the fast slugs(1900-2000fps),and the slightly slower turning 12's like the slower slugs.I'll let you know how mine does on a hog if I'm lucky in the morning.Hopefully I'll get a chance at a deer later on.You know you can trust me Travis...it's RC.