I usually carry the rifle filled to capacity. That's 1. (besides me and Idaho_Shooter above, any other fans of the No1 out there?)

one more round in my front pocket.

4 or 5 more in the belt pouch (depending on caliber)

On the less common occasions that I carry a bolt action, I fill the magazine, don't carry 1 loose in a pocket but still have the belt pouch.

This year.... zero would have been sufficient.

Poole