Well I have known a few individuals in my time that have taken deer with .22 lr, copper coated hollow point to be exact and they were head shots from treestands at less than 20 yards...on a doe. Still it can be done.
And yes, a 30-06 can really do some damage on a squirrel or rabbit....so I compromise. I carry a 30-06 for deer hunting and should a brave squirrel or rabbit get curious, I pull out my Ruger Mark II and aim for lunch. Rabbit stew is pretty good at hunting camp.
And you are right <img src="/images/graemlins/grin.gif" alt="" /> great minds do think alike.
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Get busy living...or get busy dying!