The remaining question mark is probably the brand name of a gun. It sounds like "Anthonate". I don't know much about hunting, so I can't guess better than that.
This man is a pretty good example of how native English speakers do strange things with the grammar when speaking...
Is he really saying "one ounce of shot"? Is that the right terminology and doesn't it sound more like he's saying "one instance" although that would be a weird thing to say....?