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Thread: .22rf chambering

  1. #1
    Boolit Buddy
    Join Date
    Feb 2010
    Location
    northeastern washington
    Posts
    353

    .22rf chambering

    How critical is the head dia when chambering?
    Head space @.043 rim but can the head relief OD be say up to .312?
    Some relieved barrels seem close fit to rim, but relieved bolt heads seem to be larger, does it really matter? The extractor seems more inportant fit for proper function.
    Shaune509

  2. #2
    Boolit Master

    Join Date
    Feb 2007
    Location
    Lewiston, Idaho
    Posts
    2,741
    Some of the old Stevens were about 3/8", but then they didn't have high velocity ammo back then.

  3. #3
    Boolit Man
    Join Date
    Nov 2010
    Location
    Central Missouri
    Posts
    82
    Depends on the gun, some are not recessed into the barrel at all but the bolt is. Think Ruger Mark I, II,III.

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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