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Thread: uberti 1873 357mag accuracy issues

  1. #1

    uberti 1873 357mag accuracy issues

    hi guys its fasthands again
    this time i seam to be having some difficulties with my old rifle its a uberti 1873 357 mag with a 24 inch barrel
    from the day i got this thing it had been a tack driver
    by far the most accurate rifle i own, 38 special or 357 mag it didnt matter this gun would hit
    unfortunately recently i had a case head blow off and the hull get stuck in the chamber
    i left it sitting untill i had time to resolve the issue which i did
    the chamber and barrel all look to be in good condition but it now seams to be throwing strange angles
    anyone have any advice to get this old machine running right

  2. #2
    Boolit Master
    Join Date
    Mar 2014
    St. Louis
    What do you mean, throwing strange angles?

  3. #3
    it’s hitting off

  4. #4
    Boolit Master
    Bent Ramrod's Avatar
    Join Date
    Apr 2005
    Southern Arizona
    How is your headspace? A pressure level that would take the head off a .357 shell might have bent or stressed the linkage, and loosened it up. Not having your rifle tightly breeched could cause inaccuracy.

    Can you close the action on a feeler gauge? How thick of a one does it close on?

  5. #5
    i dont believe it had to much pressure
    it was one of my old 38 cases that had been reloaded too much
    i missed it when i went through my brass

  6. #6
    Boolit Mold
    Join Date
    Dec 2021
    I would start by checking the barrel for a bulge, perhaps not likely. I would clean the barrel down to the steel. Sharpshooters wipe-out, patch-out or similar nondestructive copper remover. See if you can get your hands on a borescope to see that its clean. Are your rounds sealing in the chamber when fired? Look for gas blowby on the case. Do you shoot lead, because I leaded my barrels before and it effected accuracy until I removed the lead. I'm just throwing darts here, hope you can resolve it.

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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