Has anyone tried reloading .380's with 115 grainers.?

Discussion in 'Reloading' started by tic-tok-GLOCK, Jul 20, 2018.

  1. tic-tok-GLOCK

    tic-tok-GLOCK

    Messages:
    2,903
    Likes Received:
    10,012
    Joined:
    Feb 22, 2015
    Location:
    Novi,Mich.
    I know commercial rounds are sometimes loaded with 105 grain bullets.

    I'm kinda interested in a trying 115's for fun/knowledge.
     
    LASTRESORT20 likes this.
  2. dkf

    dkf

    Messages:
    6,514
    Likes Received:
    1,510
    Joined:
    Aug 6, 2010
    I loaded and shot some 115gr XTPs already. The base of the bullet bulges the case but they chambered and shot fine for me. If memory serves me right I used HS-6.
     
    tic-tok-GLOCK likes this.

  3. HKSmith

    HKSmith

    Messages:
    99
    Likes Received:
    4
    Joined:
    Apr 12, 2003
    I did this a number of years ago with some IMI 115 grain JHP's. They were a little bit of a loose fit in 9 mm at 0.354 inches, but they worked perfectly in .380 with no excessive case bulge. Very accurate and reliable in a SIG P230 and an old Browning. I used W231 powder, but have no record of the weight of powder or OAL that I used. The current Lyman Manual (50th Edition) has loads for both a 115 grain JHP bullet (they don't specify which one) and a 120 grain cast bullet. Not all 115 grain JHP's have the right profile for .380 as they were designed for 9 mm, so you might have to do some experimenting.
     
    tic-tok-GLOCK likes this.
  4. Mr.Black

    Mr.Black

    Messages:
    1,900
    Likes Received:
    2,332
    Joined:
    Nov 20, 2013
    Location:
    South Hill, WA
    The heaviest I've tried personally is some home cast and powder coated round nose that average 108g. They performed fantastically with the slightly lightened load of Power Pistol I was using.

    I'm not recommending this but I think I could safely load up a 115g projectile and make it function safely.
     
    tic-tok-GLOCK likes this.
  5. wlkjr

    wlkjr

    Messages:
    3,865
    Likes Received:
    5,455
    Joined:
    Apr 9, 2012
    I shot some a friend loaded with 115g Montana Gold HP. They shot fine and functioned perfectly.
     
  6. Borg Warner

    Borg Warner

    Messages:
    16,535
    Likes Received:
    37,426
    Joined:
    Jan 8, 2017
    Location:
    Northeastern Washington
    The only problem would be that you wouldn't get much velocity out of them. I'd guess around 750-maybe 800 fps. With the case capacity of the 380, you've pretty much reached the point of diminishing returns with a 100 grain bullet.

    Underwood loads the 9mm Makarov with a 115 grain hardcast to 1000 fps/255 ft lbs but the 9mm Mak is a larger diameter case that's 9x18 while the 380 is 9X17 and the Makarov has more case capacity (12.8 vs 11.9 grains of water) and Underwood ammo is loaded to maximum pressures.

    The problem with any 115 grain bullet is that with such low velocity a JHP would not expand and an FMJ would be unlikely to penetrate. If you had a bunch of 115 grain bullets available for a low price, it would be good for practice ammo however.
     
    Last edited: Jul 28, 2018
    tic-tok-GLOCK likes this.