I expect you'll have a ton of fun with the new rifle.
My latest is an RWS .22 gas ram as well. A 350 N-tec which is likely very close mechanically to yours.
It's my third with a gas ram in a row and I do like them, a lot.
The lifetime warranty is a comfort but I doubt I'll need it.
I ordered pellet samplers of JSB and H&N pellets and several tins of JSB Hades and just like a rimfire, It shoots them all but it likes what it likes.
Have fun running a tin or two through it and then you can get serious about finding exactly what it likes.

We'll need a report of course!

"Camping places fix themselves in your mind as if you had spent long periods of your life in them.
You will remember a curve of your wagon track in the grass of the plain like the features of a friend."
Isak Dinesen