Nice gun for sure.......I'm enjoying mine more every time I get out. I too did the bore swabbing,,although I couldn't find the JB,,ended up with Iosso and used a 410 shotgun swab saturated with paste and my battery drill for the chamber,,haven't had a stuck case yet.
As far as ammo..... Hornady factory 58gr moly v max is all I've shot so far,and I'm pretty happy with it. I believe the gun shoots better after a few rounds,,,or maybe I just get more comfortable after a few shots.
I just recieved some bulk 75gr v max ammo from Cabelas,,so once I shoot some I'll post the results of it.
Enjoy your new rifle ,,,,,,,critter seasons' a comin'.