10mm or .45 ACP for HD?

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Depends. What platform are you looking for? Do you reload? If so you can customize either to meet your needs power wise as either will do the job. What fits you (ergonomics), how many rounds do you feel comfortable with? Try (rent) each, find a manufacture/style of handgun that feels right then match the round to the firearm. Accuracy and follow-up time is important so make sure you can properly control the handgun you select.

I have both but my 10 is less practical for HD as it is a Springfield Omega and not one I want to use a lot to be as competent as I should be.
 
For strictly home defense usage, I'd go 20 gauge with some #4 buckshot, but of the options given, I'd go .45 to limit penetration. I think the 10mm is one of the best rounds out there for personal defense and I don't really buy into "over penetration" in most situations, but inside the home is another story.
If you are set on a handgun, perhaps you should check out a Taurus Judge or beter yet IMHO, a Kel Tec PMR-30, its only a 22 mag, but it holds 31 of em and it really would take care of over penetration issues in a very effective manner.
 
I have one of each, Colt Gold Cup models somewhat customized.

For home defense I would go with the 45, simply a bigger hole. If I had to go outside, at longer ranges the 10mm would win hands down, it just plain shoots flat compared to the 45.
 
I've been in a VERY VERY tight space (smaller than a bedroom) when a Remington Golden Saber 125 grain .357 mag was discharged.

Remington Golden Sabers run on the low end of 357 magnum, and dont have much more velocity that a hot 9mm, but I still bet it was pretty loud.
 
The .45 ACP runs 21,000 PSI pressure and hurts your ears inside a room without hearing protection.

The 10mm runs 37,500 PSI and has a muzzle blast that will make your ears bleed!

Pressure certainly plays a part, but in the end the magnitude of the blast depends on how much pressurized gas escapes from the barrel. Obviously with 10mm versus .45 ACP the answer remains the same--the report of 10mm will generally be louder and sharper, with the difference being dependent on the "power" of the load. Another consideration is barrel length, with shorter barrels resulting in louder blasts for a given load. In addition, lighter, faster loads tend to be louder because more gas escapes at higher residual pressures.

For example, 9mm runs at nearly the same internal pressure as 10mm, but in typical barrel lengths the gas escaping from a 9mm barrel will be of lower pressure and have less residual energy to convert into sound. However, given standard loads, a long-enough 10mm barrel, and a short-enough 9mm barrel, 9mm could actually be made to sound louder (theoretically--I'm not sure whether this ever happens with commonly available firearms).
 
Really six of one, half a dozen of the other. Given a human of normal proportions, both will penetrate through and through with a good bullet, doing plenty of damage along the way.

.
45 ACP.

If you don't believe it, just fire one round of each inside your bedroom.

The .45 ACP runs 21,000 PSI pressure and hurts your ears inside a room without hearing protection.

The 10mm runs 37,500 PSI and has a muzzle blast that will make your ears bleed!

rc

There's some merit to that, though either could permanently damage your hearing. I keep earmuffs in the bedroom for that reason; If I have ample warning, I'll be hunkered down behind the bed, at the ready, and they'll be on. Of course, with my loads, the .45 would be just as bad as the 10mm. A 240 gr. bullet leaving a 3.5" barrel at over 1,100 FPS has some serious pressure behind it (yes, they're borderline .45 Super loads).
 
I agree that keeping ear protection along side the weapon of choice would be a good idea to protect your hearing from damage should you need to fire in a small enclosure. But in reality if you are awoken out of a sound sleep by something going "BUMP in the night" are you going to put on ear protection in the event you "might" fire your weapon. Or are you going to be listening and straining to hear what woke you in the first place to try to hear it again and identify and pin point the source and location? Just my humble opinion but I am pretty sure I personally am going to be listening for nosies and don't want to hinder my sense of hearing with ear protection. Shoot now if I have to and suffer the hearing problem later. Just my thought on the issue.
 
Are you serious?
Document what, the pressure or the bleeding ears?

Why don't you do us a favor and fire a 10mm in your bedroom and let us know if your ears bleed, OK?
YES!! Can you document that firing ANY handgun in an enclosed space will cause "bleeding ears"?
 
Maroast wrote: "I've been in a VERY VERY tight space (smaller than a bedroom) when a Remington Golden Saber 125 grain .357 mag was discharged. I did not have hearing protection on. Sure my ears rang for a bit, but hearing returned to normal quite quickly with no *apparent* lasting effects. Hearing was intact the ENTIRE time. No bleeding."

WHAT?!! No bleeding ears? NAWWWWWWWWWW!! Can't be true!!
 
YES!! Can you document that firing ANY handgun in an enclosed space will cause "bleeding ears"?
Do you actually think he meant your ears will literally bleed? C'mon now, I'm sure it's an exaggeration to make a point. :rolleyes:
 
But in reality if you are awoken out of a sound sleep by something going "BUMP in the night" are you going to put on ear protection in the event you "might" fire your weapon. Or are you going to be listening and straining to hear what woke you in the first place to try to hear it again and identify and pin point the source and location? Just my humble opinion but I am pretty sure I personally am going to be listening for nosies and don't want to hinder my sense of hearing with ear protection. Shoot now if I have to and suffer the hearing problem later.

It's a wonderfully advanced world we live in

tacticalpro.jpg

They automatically cut out loud noises, and amplify soft ones. Win-win, if you have time to get 'em on.

http://www.midwayusa.com/viewproduct/?productnumber=665374
 
I've shot both .45 ACP and 10mm for about twenty years. I've reloaded 1000s of rounds for both. Between the two calibers, I would select .45ACP for Home Defense. In actuality, I have .38/357 Magnum for home defense, backed up by a 12 ga and running from #8 to 000 in a high-capacity (6 round) mag....

But, my SD scenarios really don't call for reload needs, particularly, even in my own home.

Jim H.
 
ArchAngelCD said:
Do you actually think he meant your ears will literally bleed? C'mon now, I'm sure it's an exaggeration to make a point.


Well let's hope so because that is pretty silly.


I think some people get carried away with the mythology of the 10mm.


Yes it is a potent round but come on it's basically just a .357 magnum in pistol form.


Is a .357 magnum gonna make your ears "bleed" if you fire one indoors???


Sorry but color me skeptical.
 
MachVIshooter,

I am new to this site and haven't learned to use it properly yet. I can't even figure out how to show a previous post with quotes. My intension was to just read and learn and not bother with posting anything myself but the first thing I did was violate my own rule and respond to your remarks about putting on earmuffs. Now I am glad I did or I would not have known about the ones that protect from loud noises and at the same time increase ability to hear. I have used the same ear protection for 30 years and they are just plain earmuffs and hinder me from even hearing what the range master says. Thanks for the info.
 
After being involved in a shooting I guarantee you pressure won't matter. In that situation audatory exclusion WILL set in!
 
I think the 10mm is more effective at quickly stopping a human aggressor, but when you choose that caliber you're also restricting your choice of weapons to a great extent.
 
Main Entry: hy·per·bo·le
Pronunciation: \hī-ˈpər-bə-(ˌ)lē\
Function: noun
Etymology: Latin, from Greek hyperbolē excess, hyperbole, hyperbola, from hyperballein to exceed, from hyper- + ballein to throw — more at devil
Date: 15th century
: extravagant exaggeration (as “mile-high ice-cream cones”)
 
I have used the same ear protection for 30 years and they are just plain earmuffs and hinder me from even hearing what the range master says. Thanks for the info

I'm glad you found that useful.

There are, of course, less expensive versions of the automatic muffs, some of which do not have the amplification feature. But like anything else, you may not always get what you pay for, but you never get what you don't pay for. I've had the cheaper ones. I'll stick to quality.

If you'd like to get feedback on particular models before buying, post the question in either our firearms accessories subforum (appropriate) or General gun discussions (much higher trafiic). If you choose to post it in GGD, I would mention that you did so because you wanted the most exposure. The moderators may move it if they see fit.

And welcome aboard!
 
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