please can someone enlighten me on the pro's and con's and any other matters when considering which calibre, any thoughts would be much appreciated.
.177 has a flatter trajectory which makes long(er) shots easier.
Both are capable of dropping bunnies at legal power limits.
Scout's (for some reason unknown to me!) restrict shotting to .177
Simon
For sub 12 ft/lbs air rifles personally I see no use for an argument of the two pellets, there is only .025 between them and although there will be a difference it wont be all that great. They will both only take down the same sort of size quarry e.g. rabbits, squirrels, pidgeon etc. etc.
I have killed far more rabbits with the Girlie pellet than I ever did with with the .22, and never ever had one run off that had been shot through the brains, large smack and a kick out and thats it.
Killed thousands in that manner, and more rats than I care to think about.
A rabbit shot through the brain does not run off, spin around on the floor yes. But how can a rabbit with no sensory perception run off?
Sounds to me like your .22 is not making its way through the skull HillBill, that would be a very plausible explanation for your problem, lack of penetration.
I see what you say HillBill, but it's not a problem I have ever encountered. I have never once had to trace a rabbit that has been shot between the eye and the ear.