How Many Grains?
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Thread: How Many Grains?

  1. #1

    How Many Grains?

    I am a new Concealed Carrier and have a question about what size of slug to use.
    There is a dizzying array of slug sizes in the .40 caliber ammo market. There are heavy-slow ones and light-fast ones. What is the best (most useful for protection) to use? Maybe I am over simplifying the situation with this question, but I thought it worthwhile to ask.

  2.   
  3. I also carry .40. To me honestly it's not a huge difference. I generally will buy whatever I can find in a particular caliber without thinking about grains. It's all down to personal preference. I suggest buying maybe a box of each weight bullet and trying them out seeing what you like best! Hope thy helped ya out

  4. #3
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    Take a look at an article I had written on selecting defensive ammunition. My best advice is to select between 165gr & 180gr.

    5 Tips on Selecting Ammunition for Concealed Carry - USA Carry

  5. #4
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    Now for the long answer, the goal reach 12-18 inches of penetration to per the FBI testing for law enforcement. Medium to Heavy weight bullets in your selected caliber usually preform the best, stay away from specialty bullets such as glaser's and others that are designed to fragment on impact. Read the manufacture's information to find out if your selected round has been subjected to the FBI tests and read the results. If you have any more questions you can post them or contact me directly Hope this helps.
    Matt

  6. #5
    I agree that the heavier is usually better. You can find ballistic info. online and videos on YouTube. But, different ammo (brand, weight) can perform (run) better in one gun than another. Find what works best in your gun. Which give you a reason to shoot. I prefer 180 gr. but I will buy 175 and 165 gr. hollow point for .40. Remember that weight does not make up for shot placement. FMJ are good for practice but can be used for carry. They are not made to expand and will or can go completely through and hit something or someone else.

  7. #6
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    If it helps, our Sheriff's Department uses 180 gr, Speer Gold Dot hollow points for their duty ammo. This is what they run their qualifications with as well.

    When practicing I will never use anything but 180 gr ammo, but for practice I use FMJ.

    I would not get different weight bullets for practice and carry. Whatever you do decide on, make sure your carry ammo and your training ammo are the same weight.
    "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote."
    ~ Benjamin Franklin (maybe)

  8. #7
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    Personally, I usually don't go below 165gr. in .40S&W.
    "Educated men are as much superior to uneducated men as the living are to the dead."_Aristotle
    http://berkbru.wix.com/dstglv http://berkleybruce.blogspot.com/

  9. #8
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    Quote Originally Posted by BRBruce View Post
    Personally, I usually don't go below 165gr. in .40S&W.
    165 for the CS 40 and 180 for the S&W 4006. The CS 40 can handle higher loads but the wrists can't.
    NRA Certified Pistol Instructor
    NRA Certified RSO
    Normal is an illusion. What is normal to the spider is chaos to the fly.

  10. #9
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    Because of the ammo shortage. My range ammo because a mishmash of brands and weights (100 roundTul 180 & 300 rounds Winchester White Box 165 grain. I tried to keep it as close to 180 grains as possible. My defense ammo is Hornady Critical Duty 175 grain. As the .40 is becoming more available I'm going to try to replace my Winchester target ammo with 175-180 grain

    Sent from my SGH-M919 using USA Carry mobile app

  11. #10
    I also use the 175-grain JHP Hornady Critical Duty.

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