Consider a philosophical reversal?

Consider a philosophical reversal?

This is a discussion on Consider a philosophical reversal? within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; Just for the record...I have been a die hard "big and many" school for thirty plus years. Meaning, .45 acp with several magazines ready, all ...

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Thread: Consider a philosophical reversal?

  1. #1
    Member Array Rbrown777's Avatar
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    Consider a philosophical reversal?

    Just for the record...I have been a die hard "big and many" school for thirty plus years. Meaning, .45 acp with several magazines ready, all day, every day. Perhaps a 10mm, anything else is a BUG.

    That said, I purchased an FN Five-seveN single action-low recoil pistol.
    This is a 5.7mm necked case round traveling at around 1800 to 2100 fps with TWENTY rounds per magazine.

    I am soliciting knowledgable opinions and comments that are well reasoned and thought out.

    I'd prefer to avoid obvious cliches, i.e. ".45 ACP RULES MAN, anything less is a" ...whatever.

    I am reconsidering my big bullet theory for the fast any many school of thought due to the extraordinary results that several military spec-ops throughout the world have reported with this weapon configuration.
    "If it is possible, as much as depends on you, live peaceably with all men." Romans 12:18
    ...if prepared to meet Mr.10mm, .45, .40 or any one of their little brothers.

  2. #2
    Senior Member Array Pete Zaria's Avatar
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    Nov 2007
    Pacific Northwest
    Do some research! In fact, do some of your own.

    Consider testing your .45 ACP and your new FiveseveN against some ballistic gel, or wetpack, or roadkill deer (for the true rednecks).
    Compare them side-by-side. Do it a few times in a few different materials.
    Try covering the material with a few layers of denim first.
    Try a few different brands of ammo in each gun.

    Then, with some real data to work with, make an informed decision.

    Me? I carry a .45 ACP with +P hollowpoints of modern design and don't have any "second thoughts" about it.

    Pete Zaria.
    Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.
    - Margaret Mead

    "Booger Hook Off the Bang Switch" - unknown

  3. #3
    Senior Member Array the_fallguy's Avatar
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    Aug 2007
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    My personal criteria for a carry caliber/weapon is the ability to stop an unavoidable threat via a hit to the central nervous system. To do that, a given caliber must be capable of penetrating enough soft tissue and bone to reach it, and still be able to inflict damage on it.

    I don't hold that much stock in the size of the wound channel; by the time that matters I believe it is too late to make a difference. The transfer of energy from a round to its target, or the amount of fluid shock a given round has may play a large role in incapacitating an attacker, but it is far from a sure thing.

    It seems the Five-seveN has fluid shock in spades, due to the high velocity of the bullet and the fact that most ammunition available is either frangible or ballistic tipped. There is also no doubt in my mind that the pistol/caliber combination is deadly. My concern is whether the 5.7x28 rounds available for civilian purchase have enough penetration to immediately stop a threat via a CNS hit.

    Any thoughts on this matter from the OP or anyone else?
    _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
    Where self preservation is concerned, if you're not cheating, your not trying...

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  5. #4
    Array QKShooter's Avatar
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    Well, I am a .45 guy but, whatever improves your personal shot placement is OK with me. That is what it's really all about.
    If you can put them where they need to go to stop a threat then you should be well served. Try to work on your head shots.

  6. #5
    VIP Member Array Cuda66's Avatar
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    I think that with the military & LEO rounds, the 5.7 would be an adequate self-defense pistol.

    However...the only rounds that I've seen commonly for sale are the light (36 or 40 grain?) V-max style rounds. I have my severe doubts if these would penetrate deeply enough to be effective.

    It wouldn't be my choice...I'll take my 9mm or .45.
    There are no dangerous weapons; there are only dangerous men.--RAH fights with his mind; the weapons are incidental.--Jeff Cooper

    There is a reason they try and make small bullets act like big bullets--Glockmann10mm

  7. #6
    Senior Member Array Rossman's Avatar
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    45 acp for me

  8. #7
    Array SIXTO's Avatar
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    Set aside ballistics, and think logistics. Stick with a common and proven performer on the street.
    "Just blame Sixto"

    I reserve the right to make fun, point and laugh etc.

  9. #8
    Senior Member Array mr surveyor's Avatar
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    I had considered a 5.7 because of the velocity and believe that the necked down cartridge is a good design, although I still haven't bought the .357 Sig conversion barrel for my 239/40. My only reason for putting the 5.7 on the back burner is availability of ammo. I have weeded down my collection to include those weapons with high popularity and large production of ammunition here in the US. I also feel as comfortable on most of those days that I have to carry a small P3AT due to clothing for the day, or the type of activity I'm involved in, as I do on days I carry a .38, .40 or .45.

    What little experience with the 5.7 round I've had at the range, I was greatly impressed.

    Also, I would bet there is a higher percentage of the "nothing but 4's" crowd (in handguns) that believe the 5.56/223 platform is far superior to .30-06....for whatever reason.


  10. #9
    Member Array carver's Avatar
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    This is just one of those hand guns designed to defeat (penetrate) body armor. The balistics are impressive, and from what I know at this point it should be enough to do a job on any BG. My first concern though, would be penetration, it's there in spades! But would this bullet shot through the BG? If so, then an inocent by stander might be in real trouble. However, one individual has stated that this round is comparable to the .22 mag. I wonder if that is enough to do the job right?

    Y'all be safe now, ya hear!

  11. #10
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    Array Tangle's Avatar
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    It is my understanding that the terminal ballistics of the 5.7 (pistol) are not that impressive. The Army found that a velocity of 1800 fps is required for hydrostatic shock to occur. The 5.7 is marginal. If it has 1800 fps at the muzzle, it may not be fast enough at the target to produce shock. That means a small hole from a bullet that may not expand.

    As we know, there are only three bullet incapacitation mechanisms: CNS shut down, psychological, and bleed-out. We have little control over the first two so that only leaves bleed out as a probable factor. My concern is that the small 5.7 may not make big enough wounds for timely bleed-out. That could be a problem.

    The 5.7 is certainly an accurate, low recoil caliber – about as soft shooting as it can get, but we shouldn’t mistake that for terminal effectiveness.
    I'm too young to be this old!
    Getting old isn't good for you!

  12. #11
    Senior Member Array Sarge45's Avatar
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    Hydrostatic shock is a neat buzzword but the reality is this...

    I need as much permanent "displacement" of target material as I can get. More frontal area of the projectile equals greater displacement of damaged media. In layman's terms, the .45acp damages more stuff. The little needle of a 5.7 doesn't, as it relies on the temporary disruption from the shock factor and "maybe" the tumble effect.

    Again, .45acp is a sure thing.

  13. #12
    Senior Moderator
    Array bmcgilvray's Avatar
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    I would chose the .45 ACP over a .22 Magnum rifle ballistics for personal self defense.

  14. #13
    VIP Member Array OPFOR's Avatar
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    Yeah, but most of you guys would choose a .45 over an frickin' phaser....
    A man fires a rifle for many years, and he goes to war. And afterward he turns the rifle in at the armory, and he believes he's finished with the rifle. But no matter what else he might do with his hands - love a woman, build a house, change his son's diaper - his hands remember the rifle.

  15. #14
    Array ecbaatz's Avatar
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    Ammunition Avavilability

    Another factor to consider is the availability of ammunition. I know I can buy 9mm and 45acp at "most" walmart or meijer's. Not my first choice of course but it is available. Not sure about the other.

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    A 9mm may expand but a .45acp won't shrink

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  16. #15
    Member Array NWCP's Avatar
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    IMHO a sure thing in a pistol round doesn't exist. Terminal ballistics aside it all comes down to shot placement. I'm comfortable and confident with my 9mms therefore I tend to carry a 9mm on a daily basis. Not that I don't enjoy shooting my .45ACP pistols. They just aren't my go to gun for CCW. As for the 5.7x28 I'm not a big fan of the little round. It's not easy to find locally and the bullet is a tad small for my taste. Not saying you couldn't bring someone down with it. Just not my cup of tea and I wouldn't want to depend on it for personal defense.
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