The Trailer guy points out that Cummings and the VPC

& Co. really DO want to ban all arms from private ownership; they're just willing to go 'round at angles and play word games to do it. For instance, "We don't want to ban your 'standard' rifle. Unless we can define it to be a 'medium' or 'intermediate' sniper rifle, in which case it's gone. Along with your ammuntion and that telescopic sight and anything else we can steal."
...Such litigation could impose tort liability, including punitive damages, for manufacturers, wholesalers, distributors, importers, retailers, and any others who participate in bringing to the civilian market any sniper rifle (in any caliber) or associated gear (such as ammunition or optics) that is used to kill or injure a human being or to damage property.
Which is the equivalent of Ford and the Ford dealer who sold a car being held liable for a drunk driver. Which they'd probably also love to do.
and

The existing ban on armor-piercing ammunition should be updated and expanded to cover all AP and API ammunition. This would most effectively be accomplished through the promulgation of a performance standard in which ammunition is tested for its ability to penetrate bullet-resistant vests, ballistic glass, and armor,^ee as opposed to the existing standard based on the bullet's content.

Guess what? Most "bullet-resistant vests" are designed to stop PISTOL rounds. Not rifle rounds. You're 30 cal of any sort would be categorized as AP ammo.
Which means Grandpa's .30-30 Winchester would no longer have ammo. Along with every other rifle or handgun legal for hunting deer, I would imagine.