Right, so.
We're not anti-gun. Just anti the "only used explicitly for killing people" kind of gun.
I grew up and live in rural Canada. Rifles for hunting or farming are just part of life. Though the long gun registry did make them more of a hassle.
Why do you need a killing-person gun? What's that for?
I'm not yielding to your premise but I'll entertain it for a moment. Massive biological differences aside, the rough composition and weight of a deer isn't so much different than a human. An AR chambered in something like 6.5 is one of the most ergonomic and effective deer killing machines you could possibly use. Very light, able to make follow up shots easily, swappable magazines, insane aftermarket availability and cheap ammunition for training because nearly the entire US military uses the parts, etc etc.