Thats an hard question to answer I would say its my HW 100 KT in 22 but I also have a Air wolf in 177 and 2 Ultra SE in 177 and 22, recently I have found myself picking up my Ultra 177 all the time so I really cannot say.
Lloyd
Nice shooting and lovely rifle Mark, they are an outstanding rifle I love my KT 22. And i totaly agree with your second choice that's why I have 2 Ultra SE in 177 and 22 as well.
Regards
Lloyd