@Mr-H Consider calling them this morning to ask about pellet recommendations. That way if you aren’t already stocked up on .22 ammo, you can order some and they can ship the recommended pellets with your gun. Hopefully you won’t have to pay additional shipping charges and you can post what they recommend.
I suspect that Dana has sold more than a few Evols with his work. He’s put in some serious time and work with his. At this point I think just about anyone with accurate information is also helping to blaze the trail for the brand, at least on this forum. Please keep us posted with new information and discoveries.
I favor the .25 for small to medium sized game and target shooting. I’ve recently been looking at .22s as well, so your post caught my eye. I figure they’re cheaper to shoot and are capable of taking small game just the same. Since reading posts and seeing videos and pics of what guys are doing with slugs in .22, I really became interested. @Motorhead modified a .22 NSA HP and posted pics of the expansion he got shooting 1 gal water jugs and I was thoroughly impressed. I think you selected a good gun if you opt to go the slug route.