Iam going for fac air because flatter line,a bit more knock down power,I will then feel more confident taking shots at the 50/60 yard range,(I don't need all the power and risk of ricoche from 22 lr around livestock,a lot of lambs at moment ),elevated shots,( not permitted with live rounds ) I done a bit of reading up and a 25 fpe air rifle will max out at 438 yrds and retain 0.848 fpe,a 22 lr will reach 2000 yards and retain 9.7fpe,wow that's a long way and will still do a lot of damage. Personally iam not ready for that yet who knows after a year or so with my fac air I might feel the need a