Factcheck.org says that the “banning common hunting rounds” part of the NRA’s ads is false, because the ban applies only to handgun ammo, and ammo designed to be armor piercing. The bill defines an armor piercing round as: “a projectile that may be used in a handgun and that the Attorney General determines, under section 926(d), to be capable of penetrating body armor; or (iv) a projectile for a center-fire rifle, designed or marketed as having armor piercing capability, that the Attorney General determines, under section 926(d), to be more likely to penetrate body armor than standard ammunition of the same caliber.” 

No chance of that banning your 30-06 or 30-30 ammo, right?

Not so fast. Both calibers are available in a handgun. So EVERY SINGLE ROUND of those calibers is “a projectile that may be used in a handgun … capable of penetrating body armor”

In fact, barrels for the Thompson Encore can be found in the following calibers, and a this is not an exhaustive list: .22-250 Remington, .223 Remington, .204 Ruger, .243 WInchester, .25-06 Remington, .270 Winchester, .30-06 Springfield, .308 Winchester, 7mm-08 Remington, and .45-70 Government. There are even pictures of a custom .600 Nitro Mag! Although I have not tested it, I would feel safe saying that every one of those cartridges could penetrate body armor, so every one of them could be banned under the law as it is written.

Sounds like a lot of common hunting rounds to me.