4" Barrel and 9mm Bullet Grain weight

This is a discussion on 4" Barrel and 9mm Bullet Grain weight within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; DC friends, I'm purchasing a Kahr P9 (9mm) in a week and wanted your take from experienced shooters regarding the 4" Barrel on bullet weight ...

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Thread: 4" Barrel and 9mm Bullet Grain weight

  1. #1
    New Member Array fatty's Avatar
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    4" Barrel and 9mm Bullet Grain weight

    DC friends,

    I'm purchasing a Kahr P9 (9mm) in a week and wanted your take from experienced shooters regarding the 4" Barrel on bullet weight for CCW use.

    The pistol is dedicated purely to CCW. I'm VERY fond of the Federal HST ammunition and with the 4" barrel wanted some insight regarding 124 grain vs. 147 grain.

    I'm hoping the 147 grain will operate as designed with the 4" barrel as that is my king of carry loads.

    I live in Western Oregon where we have a mild climate. Summers in the 80's are average and 40's as an average in Winter. Penetration thru multiple denims etc.. is not normal here. So lets not go on that tangent please.

    I'm interested in the FPS and spec'd design of the HST round at those velocities.

    I look forward to all your comments.

    Thank you all.

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    VIP Member Array Cuda66's Avatar
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    The 147 gr HST will work just fine from a 4" barrel.

    Actually, there's a post here, somewhere, where Winchester actually recommends the 147gr rounds in the shorter barrels; can't see where HST would be any different.

    If your pistol likes it, it'll do just fine.
    There are no dangerous weapons; there are only dangerous men.--RAH

    ...man 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

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    Get a box of each and let your firearm decide which it likes best...it probably won't make much of a difference.OMO
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    VIP Member Array farronwolf's Avatar
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    I use 124 currently. Although if your using a good quality ammunition and your gun likes it, I really don't think it makes much difference.
    Just remember that shot placement is much more important with what you carry than how big a bang you get with each trigger pull.
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    Member Array chasbo00's Avatar
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    How reliably the cartridge functions in your pistol is the most important factor by far for CCW use. If both function flawlessly, I would favor the 147 grain as I believe it has slightly better penetration capability. Federal HSTs are my carry choice too.

  7. #6
    New Member Array fatty's Avatar
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    This thread is closed.

    I went to Federal and saw that their performance testing and spec'd Velocity / Energy charts are from a 4" barrel.

    Sorry, feel like a melon!

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