You say six rifles for hunting. Does that pertain only to rifles, or would other long guns such as shotguns be included in the six?
Anyhow, I'd figure a .17 or .22 for rabbits/squirrels/casual plinking. Some sort of varmint cartridge for such as coyotes. Then, a more "serious" cartridge in the 7mm08 to .30-'06 size. So, three rifles would meet my hunting needs.
I've messed around with various types and gauges of shotguns. My old Model 12 12-gauge would work just fine for whatever birds I was after.
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