Quote Originally Posted by ETCHY View Post
Cheers all. Yep when shooting in the garage I always wear goggles as I've had the odd pellet come back at me

So it would appear that for actually blasting holes in things a .177 will be preferable. That's interesting
I think that both will be OK from an HW45, I beleive that the .177 is the same gun as the .22 it just has a different barrel. There is nothing done to take into account the extra push that .177 needs so the FPE will be lower.