Grain size difference

Discussion in 'M, C, L and S Series' started by Guest, Nov 5, 2005.

  1. Guest

    Guest Guest

    Hey I do not know much about guns and i have a question about what is the difference in grain size in ammunition. All that i have been buying sense i got my S9 is 115 grain 9mm Para. I was wondering what difference does it make if i use 124 or larger grains size?? Is it hard on the gun using the larger grain ammo ???

    Thank you
  2. Shooter

    Shooter Premium Member

    No......larger bullet size won't hurt your pistol......the difference comes from the ++marks after the ammo designation......that is powder/velocity increases (plus pressure)......but your gun has been proofed for higher pressures............

  3. madecov

    madecov Active Member

    More grains means the bullet itself is heavier. When it comes to defensive ammunition the conventional wisdom is that a heavier bullet will travel a bit deaper into the target. A lighter bullet will usually be faster but will not penetrate as deeply.

    Kinda like comparing a ball pean hammer to a mallet.
  4. theFiasco

    theFiasco Guest

    I seem to have a bit less muzzle flip with the 147 gr. compared to the
    115 gr. Not sure if this is just a subjective observation.
  5. revjen45

    revjen45 Member

    My S9 has functioned flawlessly with 115, 124, and 147 gr. ammo. Try any ammo you will carry in all your magazines before you trust it for a life or death situation.
  6. Guest

    Guest Guest

    thank you

    thanks everyone
    i just came back from shooting with 147 hallow point grain size and it does not seem to affect my accuracy. so i am going to use them as personal defense ammo . :) i will still stick with the 115 grain for the range it is a lot cheaper: 0 :)
  7. Shooter

    Shooter Premium Member

    Speaking of 9mm ammo, does anyone have some brand options and bullet weight preferences for defensive ammo? I've always carried 124g Gold Dots, but have not explored the 147g......
  8. Guest

    Guest Guest


    I just bought 100 rounds of 65 grain 9mm for my Beretta CX4. I have not shoot it yet, will let you know later. I also placed another 100 for my USP 40....a 95 gr Aguila ammo.