Shooting an M2 Browning [http://en.wikipedia.org/wiki/M2_Browning], an M60, and an MG42 at a bunch of water jugs is up on my list. Include in that putting a couple hundred rounds through the bullseye of a target at 100, 200, and 300 yards with a .308 Weatherby, getting two perfect 25s shooting trap, using up two whole boxes of ammo on my dad's new 9mm handgun (and his other new snub-nosed .357), hiking four 14ers so far this summer (with three-four more planned), camping a few times this month, cutting down a few trees, hauling said trees down a mountain, making bonfires, grilling steaks, burgers, and brats out the wazoo... That's been my summer so far. Also have a couple elk hunting trips planned for early fall.
I'd say that's fairly manly. Unfortunately, I haven't found a bear to wrestle yet. I'm constantly on the lookout though.