Wayne, those numbers look really nice for a hunting rig. I may tune for slightly less power for normal day to day use, and of course turn it up if a target of opportunity appears. I ordered some Hatsan 48.5 gn pellets just for initial shooting and breaking in, but plan to test NSA 49.5 gn slugs for general use.
Hi Buddy, I think the .30 cal ,with adjustable power. will be a great all around caliber in the field. Just my humble opinion, but the next step up to .35 cal limits the rifle use to big game realistically. I owned a Seneca Recluse in .357 in the past, and while a fantastic weapon, the noise level and cost of ammo limited my use of the rifle. My plan for the Challenger is to use the rifle just like my .25 Airforce Escape, dialed down for small/medium game use, and dialed back up for the big guys. Pigs, deer, turkey and yotes are the big guys I will be after and the size of the North GA pigs and deer are not as large as the 300-500 pound monster hogs in South GA. I would not have considered a .30 cal if the state allowed me to hunt deer and turkey with the Escape, but alas, that is not the case.If your intended game is larger or state regulations require .35 or larger for big game, of course that is the way to go. Unfortunately for me, the reality of my retirement now dictates I have one or two multi-use rifles instead of the room full of airguns I use to own. The .30 cal seems like a pretty reasonable choice for North GA.