Very good game. Best gun combo is Sluggin' Stock, Inflatable Grip, 5x Burst Trigger, Quad-Barrel, Spinigun and Nukes, but Shotgun ammo works pretty good too. Got to level 150
I imagine the Lovely Stock would have worked better, but only with Spinigun, or Ammo Canister. Any other magazine, I recommend Sluggin' Stock.