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Old January 30, 2013, 12:44 AM   #1
Irish B
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45 ACP vs 10mm

I not long ago bought a 10mm and bought my brother a .45 ACP. We've done multiple side by side tests on objects to see which is the "better" caliber. Obviously the 10mm penetrates deeper but the .45 creates a larger diameter wound channel. Which is the better cartridge for two legged predators? The reason I bought a 10mm is because I have a very large bear problem where I live but also I wanted a very effective HD gun. Thoughts?
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Old January 30, 2013, 12:57 AM   #2
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Either caliber will leave a two legged predator wishing they had stayed at home.
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Old January 30, 2013, 01:12 AM   #3
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They're both great calibers. You can't go wrong with either. I personally prefer a 10mm though it costs a little more to feed.
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Old January 30, 2013, 01:18 AM   #4
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Bear never broke in to my home so 45 good for me . I think 10 be good gun for bear Might be hard to train then to shoot it. But bet it keep down number of human tresspassing in their homes
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Old January 30, 2013, 01:26 AM   #5
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try shooting both without hearing protection as you might during defense situation. 10mm is pretty loud.
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Old January 30, 2013, 06:22 AM   #6
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Hard cast 10mm 200 gr will do better against a bear vs a standard 45 ACP.
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Old January 30, 2013, 06:39 AM   #7
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The 45 super effectively levels the playing field, if you have a 45acp platform that can handle it. Both the 45acp and 10mm are excellent but if you're in grizzly country with a handgun, I'd suggest a .454 at minumum.
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Old January 30, 2013, 06:43 AM   #8
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On paper I think the 10mm wins out.
On it's way through a person I doubt the recipient is going to notice a difference.

My own preference is for .45 as I tend to be able to get a follow up shot off faster. But 10mm is far better against bears, so for a duel purpose gun I'd say you made the right choice.
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Old January 30, 2013, 08:47 AM   #9
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I prefer 10mm, but as someone else noted, it is loud.
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Old January 30, 2013, 11:24 AM   #10
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Although I have both calibers, The 10 is my favorite!
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Old January 30, 2013, 01:36 PM   #11
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Carried them both, competed IPSC with both. There are some mighty powerful 45acp +P rounds that might be a real world equalizer between the two calibers. I have tested the Gold Dot 200jhp +P and it is mighty impressive. I dont think you can go wrong with either.

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