Dale, Thanks for the welcome , and the info. I had thought about the length of the barrel when I bought it but I got it used in mint cond. at a great price. I knew it was a goose gun as it has "Super Goose" stamped right into the barrel. Now, is there any certain brand of tube I should get it threaded for or are they all the same ? Also, when you sat "F" shot, can you explain that as I have never heard of it. New to this predator stuff..lol.. but have patterned a lot of different shots for turkey so I won't have any problem there.One more thing I been thinking about. What would you consider the max. range for this gun and would I be better off aiming for heads or front shoulders ? Thanks from a newbie, CHH