"Rifle" - means a firearm fired from the shoulder, with a rifled bore, having a barrel length of sixteen (16) inches or more and a minimum overall length of twenty-six (26) inches. (taken from the general provisions definitions) So I read that as no SBR's.

.223 would meet the requirements for energy rating on turkey, so its ok. I have never seen anything that restricts the magazine capacity for rifles or handguns while hunting small game and turkey.

I will be out there chasing turkey with my bow as I got a deer archery tag this year. Good luck this season