Have a look at this on the Theoben site: http://www.theoben.co.uk/customer/pr...=6&cat=0&page=
Notice the reduction in fpe and fps between the diff calibres!
Now you know why I like the 0.20
But really, have any of you guys ever multiple chronied rifles at preset distances on one shot?
Would be interesting to see figures from diff types of guns at varying pressures for the same pellet type, or what?