I just put this same answer on another post in this forum. I also own the 20 inch stainless Katahdin Pro hunter. Mine loves 350 gr JHP's over 35 gr of Lilgun. Very accurate and while I wouldn't want to spend the afternoon going thru a hundred rounds plinking cans with it, the recoil is very manageable as it's not a max load. No problem sighting it in and don't even think about it when I shoot a deer. In truth, I've been kicked much harder by lesser calibers in a different style rifle. Factory loads may be a bit stout according to what weight bullet and who makes them. Good luck and good shooting with yours.