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The Water Cooler
General Discussion
Why do people pick specific calibers?
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<blockquote data-quote="henschman" data-source="post: 2599161" data-attributes="member: 4235"><p>Looking at some of the stats from gunfights and researching terminal performance, I decided 9mm was my minimum acceptable chambering for self defense. As others have said, with good +P defensive loads, you get real similar performance to the calibers that start with 4. When you go on down to .380 and less, you see a major drop in performance, and may not achieve adequate penetration and/or expansion. So I got rid of my .380 pocket gun and replaced it with a 9mm (Kahr CM9). My full size is a M&P .40, which I have put a 9mm barrel on. I prefer it in 9mm, because I can get more hits in a given amount of time due to the lower recoil. But it is nice to be able to swap back to .40 with the change of a barrel, because I remember that in the ammo shortages, .40 was a lot easier to find. And if things get real bad and I can't find that either, I suppose I can always buy a .357 SIG barrel!</p><p></p><p>When it comes to rifle, I like cartridges that I can buy in bulk and for cheap... i.e. military chamberings. For me that means I mostly shoot 5.56 and 7.62x51. I suppose I own more firearms in .22 LR than any other caliber though... mostly for Appleseed use as Liberty Training Rifles.</p></blockquote><p></p>
[QUOTE="henschman, post: 2599161, member: 4235"] Looking at some of the stats from gunfights and researching terminal performance, I decided 9mm was my minimum acceptable chambering for self defense. As others have said, with good +P defensive loads, you get real similar performance to the calibers that start with 4. When you go on down to .380 and less, you see a major drop in performance, and may not achieve adequate penetration and/or expansion. So I got rid of my .380 pocket gun and replaced it with a 9mm (Kahr CM9). My full size is a M&P .40, which I have put a 9mm barrel on. I prefer it in 9mm, because I can get more hits in a given amount of time due to the lower recoil. But it is nice to be able to swap back to .40 with the change of a barrel, because I remember that in the ammo shortages, .40 was a lot easier to find. And if things get real bad and I can't find that either, I suppose I can always buy a .357 SIG barrel! When it comes to rifle, I like cartridges that I can buy in bulk and for cheap... i.e. military chamberings. For me that means I mostly shoot 5.56 and 7.62x51. I suppose I own more firearms in .22 LR than any other caliber though... mostly for Appleseed use as Liberty Training Rifles. [/QUOTE]
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