Picked up some "Southern Corn Whiskey" while in Augusta and found it quite tasty

http://www.13colony.net/southern-corn-whiskey#product

My question revolves around the fact that it is 95 proof and aged in "used oak barrels"

I thought that corn whiskey was 100 proof and uncharred barrels.

As long as you don't say "straight" can you do about anything in the production of whiskey? ie. corn whiskey.