Load DataWidenersMidSouth Shooters SupplyRepackbox
Inline FabricationTitan ReloadingLee PrecisionRotoMetals2
Reloading Everything Snyders Jerky
Results 1 to 4 of 4

Thread: Adjustable Gasblocks

  1. 05-22-2011, 09:19 PM #1
    7br
    7br is offline
    Boolit Master
    7br's Avatar
    Join Date
    Mar 2005
    Location
    Bolivar, MO
    Posts
    927

    Adjustable Gasblocks

    Just ordered an Low profile PRI adjustable gas block for my DPMS 20" barreled upper in 6.8. I am assuming a person runs the adjust all the way in and adjusts out until the rifle functions properly. My question is how sensitive is the adjustment? Is a quarter turn a lot, half, full turn?
    7br aka Mark B.

    On the internet, I am 6ft tall, good looking and can dance.
    Reply With Quote Reply With Quote
  2. 05-22-2011, 10:57 PM #2
    madsenshooter
    madsenshooter is offline
    Boolit Master madsenshooter's Avatar
    Join Date
    Jan 2006
    Location
    Upper Appalachia, SE Ohio
    Posts
    3,020
    Depends on the pressure you're running. The gas from a full power load will sneak through a very small opening, but the gas from a cast load may need a bigger opening. Even all the way closed, with a full power load my 6x45 will sometimes hiccup. It's one of those things you'll have to experiment with, then remember the settings.
    "If people let the government decide what foods they eat and what medicines they take, their bodies will soon be in as sorry a state as are the souls of those who live under tyranny."

    -Thomas Jefferson
    Reply With Quote Reply With Quote
  3. 05-23-2011, 01:01 AM #3
    nicholst55
    nicholst55 is offline
    Boolit Master
    nicholst55's Avatar
    Join Date
    Jan 2007
    Location
    Houston, TX Metro Area
    Posts
    3,615
    Quote Originally Posted by 7br View Post
    Just ordered an Low profile PRI adjustable gas block for my DPMS 20" barreled upper in 6.8. I am assuming a person runs the adjust all the way in and adjusts out until the rifle functions properly. My question is how sensitive is the adjustment? Is a quarter turn a lot, half, full turn?
    Be sure to use a magazine to insure that the bolt locks back when you're adjusting the gas block. Don't ask me how much ammo I burned up before I realized that little gem of information...
    Service members, veterans and those concerned about their mental health can call the Veterans Crisis Line to speak to trained professionals. To talk to someone, call 1-800-273-8255 and Press 1, send a text message to 838255 or chat at VeteransCrisisLine.net/Chat.

    If you or someone you know might be at risk of suicide, there is help. Call the National Suicide Prevention Lifeline at 1-800-273-8255, text a crisis counselor at 741741 or visit suicidepreventionlifeline.org.
    Reply With Quote Reply With Quote
  4. 05-25-2011, 10:56 PM #4
    82nd airborne
    82nd airborne is offline
    Boolit Master

    82nd airborne's Avatar
    Join Date
    Mar 2010
    Location
    russellville, ar
    Posts
    1,231
    You can make a finger adjustable knob with reference marks to replace the adjustment screw. A handy little improvement.
    Reply With Quote Reply With Quote
« Previous Thread | Next 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
  •  

Forum Rules

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