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9mm jsp

Discussion in 'General Gun Discussions' started by polekitty, Mar 3, 2009.

  1. polekitty

    polekitty Well-Known Member

    Just ran across a type of bullet I've never heard of before. Maybe some one "out there" can enlighten me. The ammo was marked jsp w/o grooves. I've never run across anything either with or without grooves. What goes?
  2. Auburn1992

    Auburn1992 Well-Known Member

    JSP stands for jacketed soft point, basically a full metal jacket with the nose of lead exposed (better for expansion).

    Not sure what it means by 'with out grooves'.

    ETA: Were these bullets for reloading? If so, it's possible that 'groove' is referring to the cannelure on the bullet.
  3. schnarrgj

    schnarrgj Well-Known Member

    It is jacketed soft point. Most of your hunting rounds are that type. With handgun bullets, it is a regular jacketed bullet where the jacket ends before the tip with some exposed lead, but not a hollow point. Without grove means it does not have a cannelure for crimping. These are hunting bullets for handguns.http://www.midwayusa.com/viewProduct/?productNumber=166416
    Last edited: Mar 3, 2009
  4. polekitty

    polekitty Well-Known Member


    Thanks guys. Yes, I already speak fmj, jhp, jsp, etc. But grooves? It's a mystery. The ammo I mentioned was on the webpage of Sportsmensguide.com If I rememer rightly it was Fiocci. I've shot a lot of Fiocci and believe it is really superior ammo. I use it for practice, and have carried it in my sidearm. But grooves? Never heard of that before!

    MMCSRET Well-Known Member

    I think maybe they are talking about the small mushroom starting "checks" that you see on all modern handgun JSP and JHP bullets that are designed to promote early expansion and mushrooming upon contact.
  6. The Lone Haranguer

    The Lone Haranguer Well-Known Member

    Jacketed soft points in handgun bullets rarely actually expand. An autoloading action has an additional problem with the exposed lead squashing or sticking on the feed ramp. There is a reason why JSP has pretty much been abandoned with auto pistol bullets in factory loads, in favor of hollowpoints.

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