Originally Posted by John_Deer
So we should throw our shotguns away and get an AR15? I think I will pass on that one. I have seen enough deer shot with an AR15 to know better. Quite often the exit wound looks like someone shot the deer with a nail gun. The results I am talking about are from expanding ammo, not a FMJ.
This discussion is a huge contradiction. If we were talking about a pistol everyone would be saying that bullet size is everything. That .10 larger hole in the goblin is the difference between life and death. If you choose a FMJ bullet the goblin won't even feel it.
The fact of the matter is it really doesn't matter if you choose a shotgun or a rifle if you hit the bad guy in the body he is likely to go down. If you hit the goblin at center mass with a shotgun loaded with #00 buck he is going down.
The reason I have the 9mm carbine for my wife is she loves the gun. We have covered this one too. If a woman likes a gun with adequate stopping power don't mess with it. The only result you will get by forcing her into another gun is she will stop practicing.
Nope, keep your shotgun. A shotgun is a very versatile and useful tool to have.
Keep the 9MM carbine, too. That said, see if she likes a 5.56MM carbine. If not, no problem. A 9MM carbine is far better than harsh words.
However, understand that like everything else, shotguns and pistol caliber carbines have their limitations.
With respect to pistol bullets, shot placement is everything. Anything 9MM or larger will generally do the trick and smaller diameter cartridges will work, too, with enough velocity.
Pistol cartridges common to defense use weapons generally lack the velocity to produce the kind of penetration that rifle bullets do, which is why I suggested using a 5.56MM carbine. Look at some pictures of what 9MM, .40 S&W, and .45 ACP do to ballistic gelatin. Granted, ballistic gelatin is not an analogue to flesh and bone, but it's as close as we can get. There's very, very little difference between the three. The .357 Magnum and 10MM penetrate a bit deeper.
Any base heavy projectile will tumble if it strikes something 1000 times denser than air because it lacks the gyroscopic stability required to maintain nose forward motion. The rate of spin required to maintain stability would overcome the structural integrity of jacketed lead.
In short, there's nothing magical about a shotgun and it has some severe capacity limitations and substantial recoil.
Firing one round with a shotgun is not equivalent to firing ten rounds of 5.56MM, with respect to practice. If you fire an equivalent number of rounds of the same type of ammunition you'd use in a carbine for self/home defense, then that's fine. Most people won't.
For me, 5.56MM is option 1. If that's not available or accessible for whatever reason, the 12 gauge is option 2. The 9MM pistol is option 3.