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Thread: Replacement RCBS LAM plunger/O-Rings

  1. #1
    Boolit Master huntinlever's Avatar
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    Replacement RCBS LAM plunger/O-Rings

    O-Rings on my LAM plunger are shot, getting as much splooging above the plunger and into the bullet grooves. Not finding much by way of replacement parts for the LAM. Need either the o-rings or a new plunger. Suggestions?

    (Also, dumb question - but I ran several bullets through and couldn't figure out why they weren't looking well-lubed as they always do. Now I know. Once I get the part(s) replaced, can I just run these again, or should I remove the lube and start over?)
    -Paul

  2. #2
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    Minerat's Avatar
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    Call RCBS they may be covered by warranty.
    Steve,

    Life Member NRA
    Colorado Rifle Club member
    Rocky Mtn Gun Owners member
    NAGR member

  3. #3
    Boolit Buddy Sam Sackett's Avatar
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    I agree. Call RCBS. They have been great when I had issues. Ask them the dimensions of the o ring and then next time you can go to the local hardware store and pick them up.

    I have two LAM’s, but haven’t replaced an o ring in years.

    Sam Sackett

  4. #4
    Boolit Master huntinlever's Avatar
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    Thanks guys. Don't know why I thought these were a purpose-built RCBS thing. Short search here gave me the size as 1 1/16 OD x 13/16 ID x 1/8" thick. Just ordered a bag from Home Depot.

    Thanks again.
    -Paul

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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