Thank you, that explains a lot. I am trying to use it like a .22 to hunt with. The woods are pretty open this time of year and the ranges are likely too great for an air rifle. Squirrels are tough too!
That RWS 48 has enough velocity that your 22 pellet should kill one with a head shot well past 25 yards. That's provided you can hit it that far which can be easier said than done with a squirrel moving around!