Dunno... THe list just needs to be longer... He forgot one of my favorites... My Marlin 1895 45/70 with awesome octagon barrel and tang peep sights kicks some booty!
+1
No list is complete without a Desert Eagle .50AE
M1 Garand / M1A > AK47 > AR15
Nevermind the M60, Browning M2, etc.
Nothing that shoots a .22 caliber round should ever grace the title Manly.
I respectfull submit that the .22 does deserve praise. The reason, it is the round the vast majority of us cut our teeth on as beginners. It for most is the gateway to shooting.
BTW WTF are you going to shoot with a 20mm??? that's just nuts.... I want one!