$vboptions[bbtitle]
+ Reply to Thread
Results 1 to 5 of 5

Thread: Magtech subsonic 147gr cracking

  1. #1
    Registered User Mackjack's Avatar
    Join Date
    Jul 2017
    Location
    Wisconsin
    Posts
    420

    Magtech subsonic 147gr cracking

    Using some Magtech "subsonic" 147gr ammo in my sbr semi auto uzi. 10in bbl. 80 percent of the rounds go supersonic. Anyone run into this? Did I get a bad batch or is it just cause my barrel is too long?

  2. #2
    UZI Talk Life Member
    Hey...'s Avatar
    Join Date
    Apr 2016
    Location
    In a High Horsepower Corvette, Taking My Time.
    Posts
    1,675
    Magtechs have all stayed subsonic out of a 6" barrel for me.

    For me the worst even with a 4.5 in barrel on a Browning Hi Power were 147 Speer Lawman. Maybe 15% would crack.

  3. #3
    Registered User Mackjack's Avatar
    Join Date
    Jul 2017
    Location
    Wisconsin
    Posts
    420
    Thanks! I guess I'm not the only one. I'll have to do some digging around for slower Ammo or start hand loading I suppose.

  4. #4
    UZI Talk Supporter
    sniperdoc's Avatar
    Join Date
    Jan 2015
    Location
    TN
    Posts
    3,281
    Subsonic pistol ammo is measured for use in pistols.
    Some companies make subsonic ammo for SMGs, but they make it in lots that they sell to LE&Military.
    It's not restricted, it's just not something there's a big demand for.
    Im sure if anyone ordered 100,000 rounds, the company would make them.

  5. #5
    UZI Talk Supporter
    sniperdoc's Avatar
    Join Date
    Jan 2015
    Location
    TN
    Posts
    3,281
    Lots of "subsonic" ammo is loaded very near the threshold; weather conditions can easily cause the velocity to exceed the speed of sound.

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts


Please consider becoming an UZI Talk Supporter.