Thanks for all the responses. Yeah, I know, a deer can be killed with a pen knife if one wants to. I know of more than a few deer put in freezers with nothing but a CCI CB Cap.
That wasn't really my point.
I guess what I was really wanting to discuss is that I used to think .45 was marginal at best, and anything under that was absurd. The fact is, I've seen far too many deer killed with itty-bitty hardballs to believe that. Inside 40 yards, a 00 buck pellet through the boiler room absolutely levels a deer in short order.
I don't think there's any legal requirement in this state, but I plan to keep hunting with my 50s and 54s. Hindsight being 20/20, and putting apples to apples, I have a different view of smaller calibers.
I always strive for the best shot available, and pass up when they don't work out.
I've really enjoyed reading the responses on this thread. Thanks to all who contributed.