Um, you guys know that this is a real thing, right? Gun culture has pasted parody at this pointpic.twitter.com/Yi8T7zQ1fn
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I think it's a matter of potential damage. The weapons I listed, along with Break action, have the slowest rates of fire possible i.e. pose the least potential threat. So if we are going to allow firearms I think they are the only ones we can reasonably allow.