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Thread: Best placement for gas block with sub-sonic

  1. #1
    Boolit Master
    nekshot's Avatar
    Join Date
    Nov 2008
    Location
    swmissouri
    Posts
    3,005

    Best placement for gas block with sub-sonic

    I assume for sub sonic with a 300BO or 7.62x39, the pistol position for gas valve is best? And I don't get the really short barrels for sub-sonic but then again I don't get alot of things!
    Look twice, shoot once.

  2. #2
    Boolit Grand Master popper's Avatar
    Join Date
    Jun 2011
    Posts
    8,456
    pistol
    Whatever!

  3. #3
    Boolit Master
    Join Date
    Oct 2006
    Posts
    596
    Yes, pistol position. Preferably with an adjustable block.

    Longer barrels are better, for subsonic as well as supersonic. With a long enough barrel and fast powder you can get it pretty quiet even without a suppressor. And the short gas system coupled with a longer barrel helps it to function with small charges of fast powder.

  4. #4
    Boolit Master
    Join Date
    Aug 2011
    Location
    no va
    Posts
    865
    I’ve had a 16 inch carbine length and once apon a time I had a 10 inch pistol length.

    16 inch carbine length; I had to buy a ni boron bolt, lighter spring, lighter trigger spring, and then use 4198 to get reliable cycling out of that booooger. A lot of work for just shooting subs when your figuring it out one/two things at a time

    10 inch pistol system; shot right off the bat subs. Hahaha how easy was that



    Go w pistol length bro for subs just save yourself hahaha

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check