If it's all target shooting and no hunting, I see no reason to even mess with anything other than 177. If you love the HW30S (and who doesn't), my vote would be the 50S. it's a slightly larger version of the 30S with just a bit more oomph to do a better job of shooting past 30 yards when the time comes. Better all around, do everything light springer than the 30S. Love all of our under levers, but they are big heavy guns. The 50S still retains that fun plinker feel, though. Tough to put down, once you start shooting it, just like the 30S. Another great option if you want something different, is the HW35E. Very retro, but a true beauty of an air rifle in the same general power class as the 50S.