“… there's a reason you don't see gun control advocates arguing for banning single-shot hunting rifles or basic handguns.” Actually, you do see that. “Single-s

“… there's a reason you don't see gun control advocates arguing for banning single-shot hunting rifles or basic handguns.” Actually, you do see that. “Single-shot hunting rifles” are “sniper weapons”. Handgun bans have been advocated since the 1960s.