9mm ammo. 115/124/147g

9mm ammo. 115/124/147g

This is a discussion on 9mm ammo. 115/124/147g within the Concealed Carry Issues & Discussions forums, part of the Defensive Carry Discussions category; Ballistics is something I know very little about. Is there a good reason to use one over the other for defensive purposes. Right now I ...

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Thread: 9mm ammo. 115/124/147g

  1. #1
    VIP Member Array Rollo's Avatar
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    9mm ammo. 115/124/147g

    Ballistics is something I know very little about. Is there a good reason to use one over the other for defensive purposes. Right now I am using standard pressure 124g Federal Hydra shocks as I haven't been able to get a straight answer from Taurus on if the 709 is rated for +p ammo. Is there a reason to go down to 115g or up to 147g?
    -It is a seriously scary thought that there are subsets of American society that think being intellectual is a BAD thing...


  2. #2
    VIP Member Array Eagleks's Avatar
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    Some of mine have 'feed' issues with the 147 gr. I don't use it now, so I don't put it in the wrong gun by accident and then have a problem at the wrong moment.

    I prefer the 124 gr, but have some 115 gr as well, which both shoot well in all of my guns. Afterall, if it doesn't shoot.... it becomes as good as holding a rock.

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    Senior Member Array digitalexplr's Avatar
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    I personally prefer the 147's in my 9mm, the 124 as my second choice. I don't use +p because in the end they really don't offer much if any additional penetration advantage. I shoot 115's at the range as they are usually the cheapest.

    I'd also recommend switching from the Hydra-Shok to the HST's.

    Here's why: LE - Wound Ballistics
    Read the range tests posted here.

    Here's a great page to check out to learn more about various ammunition ballistics.

    Best Choices for Self Defense Ammo
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    Distinguished Member Array PastorPack's Avatar
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    I prefer the lighter bullets (115 or 124) because they offer higher veolcities which in 9mm produce better expansion.
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    Member Array o2ryan's Avatar
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    Simple physics: force=mass_x_acceleration. Assuming each load leaves the barrel at approximately the same speed, the larger bullet will result more force applied to the target. It is not inconceivable that some pistols might have trouble feeding the 147 gr. as there would undoubtedly be a slight size variance between the different gr. ammo.
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    VIP Member Array Rollo's Avatar
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    Quote Originally Posted by digitalexplr View Post
    I personally prefer the 147's in my 9mm, the 124 as my second choice. I don't use +p because in the end they really don't offer much if any additional penetration advantage. I shoot 115's at the range as they are usually the cheapest.

    I'd also recommend switching from the Hydra-Shok to the HST's.

    Here's why: LE - Wound Ballistics
    Read the range tests posted here.

    Here's a great page to check out to learn more about various ammunition ballistics.

    Best Choices for Self Defense Ammo
    WOW, The expansion on the 147g HST is pretty impressive.
    -It is a seriously scary thought that there are subsets of American society that think being intellectual is a BAD thing...

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    For awhile here it's kinda been use what you can find... I'm a little more old school. I found some Federal 9BPLE 115gr.+P+, FBI loads, not too long ago and stocked up on them. The 9BPLE has been knockin' BG's in the dirt, with great success for quite awhile. My next choice is 124gr.+P's.

    Unfortunately, the 147gr. loads can't generate enough velocity out of the small 9mm case to make it a choice, over the 115's and 124's, in my book. YMMV
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    VIP Member Array mcp1810's Avatar
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    In a pistol I prefer either the 115 or a 124. Where the 147 really shines is coming out of a carbine.
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    Quote Originally Posted by o2ryan View Post
    Simple physics: force=mass_x_acceleration. Assuming each load leaves the barrel at approximately the same speed, the larger bullet will result more force applied to the target.
    This isn't a valid assumption. Ballistics in a single caliber, have typically shown the heavier the bullet will have a lower velocity. The only case where this won't be true, is less than full power, reduced recoil, loadings.

    If it were true there would be no need to have any loadings, but the heaviest weight bullets in each caliber. It would also make the need for these kinds of discussions unnecessary. How boring would that be...
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    VIP Member Array Rollo's Avatar
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    Ok, kind of a change in subject here but I figured I would try instead of making a new thread. Does anyone see a issue with firing a 147g out of a 3 inch barrell?
    -It is a seriously scary thought that there are subsets of American society that think being intellectual is a BAD thing...

  11. #11
    Member Array Spike32's Avatar
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    The main difference between the two is perceived recoil, which is higher with the heavier bullet, and possible feed issues, since more of the bullet extends out of the case. I have shot both extensively in Glock pistols, and prefer the 124 grain variety, but I always will prefer a smaller and faster bullet, i.e., 180 grain in .45, 124 grain in 9mm/357SIG than a bigger and slower one. I have found the 147 grain bullet in 357SIG to be a little unstable and won't use it.
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    In 4 inch or longer barrels I don't use +P
    in 9mm, they get 147gr gold dots, 45 gets 230gr gold dots
    in the shorter barrel compacts I do use the +P
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    Member Array alnitak's Avatar
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    I'm surprised by the comments on the 147 gr out of a short barrel. Over on the Kahr forum, there is a lot of praise (and some studies) done on the 147 gr. out of a PM9 and the very positive results. I am currently using the 124 gr. HST +P, but only because I couldn't find the 147 gr.

    Frankly, I think any of the 9mm SD ammos on the market will be effective. I certainly never had any doublts when I was carrying standard velocity Hydra-shocks and Winchester Silvertips 20 years ago (and still do for my older weapons). Though recently developed ammo may provide a slight edge (and every little but counts), I would not feel undergunned by any of the old stand-bys. BTW, why is it that no one mentions the ease of follow up shots and double-taps with the standard velocity cartridges (especially in light, short barreled compact pistols)? That tactical advantage may outweigh whatever gain comes with the latest +P+ ammo.

  14. #14
    Member Array alnitak's Avatar
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    Quote Originally Posted by o2ryan View Post
    Simple physics: force=mass_x_acceleration. Assuming each load leaves the barrel at approximately the same speed, the larger bullet will result more force applied to the target.
    That is the issue ... the heavier bullets are not moving at the same velocity as the lighter bullets ... you need to choose between slower/heavier and faster/lighter. You argument only applies for, e.g., 124gr. +P vs. 124gr. +P+.

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    VIP Member Array Rollo's Avatar
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    Quote Originally Posted by 64zebra View Post
    In 4 inch or longer barrels I don't use +P
    in 9mm, they get 147gr gold dots, 45 gets 230gr gold dots
    in the shorter barrel compacts I do use the +P
    I would prefer to use +p but my ccw isnt rated for it :(
    -It is a seriously scary thought that there are subsets of American society that think being intellectual is a BAD thing...

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