Originally Posted by jim321
a good flare gun and a few shotgun shells ??
In USA (and finally Canada
which made much hubaloo about the topic) they are flare launchers, not guns
Despite the "12 gauge" moniker, the 12 gauge shotshell and 12 gauge flare are not interchangeable in form- i.e., you can't use a 12 gauge shotshell in a 12 gauge flare launcher.
The pressure profile of the 12 gauge shotshell far exceeds that of the flare. The general advice
on turn of the century Damascus shotgun barrels is to NOT fire modern shotshells...and Damascus is metal. Given that the flare launcher chamber is plastic (and far weaker than even Damascus steel), it is foolhardy to even think about trying it.
Never, ever plan or try to fire a 12 gauge shotshell from a flare launcher.
Aside from that, you'll get into just as much trouble if caught with ammo as if caught with a firearm. So using a 12 gauge insert in a flare launcher and having 12 gauge shotshells doesn't keep one from upsetting the law.