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Thread: 7mm TCU will not go on my G2 frame.............

  1. #1
    Boolit Bub beng's Avatar
    Join Date
    Jun 2009
    Location
    Lat. 33N 6' 48" Long. -84 15" 11" Middle Georgia
    Posts
    69

    7mm TCU will not go on my G2 frame.............

    Just got the, or a 7mm TCU and it will not lock on my G2 frame. Now what????????????

  2. #2
    Boolit Grand Master In Remembrance
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    3,877
    More details on what is happening would probably help? Perhaps some pictures of the locking lugs if they're not latching?

  3. #3
    Boolit Master
    Join Date
    Mar 2017
    Location
    Center Point, Texas
    Posts
    605
    I'm learning little bits about the T/C receivers. There are more vintages than I realized. Seems like the 195k SN range was one of the big dividing points. I just put a barrel from an earlier number and put it on a later number. It went on and closed fine. Problem was it wouldn't open. Had to take out the trigger group and pry the locking bolt open. My barrel was an older 357 Herrett with a single piece locking bolt putting it on a 400k series SN receiver. I think any of the single bolts need to be replaced with split ones for later numbered receivers.

  4. #4
    Boolit Master
    Czech_too's Avatar
    Join Date
    Nov 2009
    Location
    Ohio
    Posts
    652
    Does your frame have a solid locking lug or split(2 piece)lug? While I have not had a barrel that wouldn't lock up, I have had one that wouldn't open. There are numerous comments out there, on the net, on fixes & causes.

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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