In New England most of the states have a 6mm minimum for use on deer, so I don't see the .223 taking over around here at least.
I beg to differ....
Jack,
Went back and checked all states in NE and you are correct. Have not looked in a while.
Chipper....you and I both know that rules and regs change all the time depending on who holds the hammer in tha segment of government!!!! Give it a bit....will change sure enough again!