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Thread: strang crystal substance in my 300bo

  1. #1
    Boolit Master corey012778's Avatar
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    strang crystal substance in my 300bo

    went to clean my 300bo, went to pull the bolt out. would not move. finally got it out. looked in the upper. a crystal like substance was all over the inside. only thing that I did different was I used a used liquid wrench dry lube not rem oil (my got to gun oil) or a silicon based automotive lube (never had a problem with it use it in a pinch if I don't have rem oil). cleaned it all out using mean green then hoppes.


    I have had some bad primer pocket issues but it was not dark. the crystal was close to the same color as salt. any ideas?

  2. #2
    Boolit Grand Master

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    Maybe reaction between the 2 oils.

  3. #3
    Boolit Master corey012778's Avatar
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    I am thinking a reaction. possible the oils don't play well, the Teflon and what every is in the dry lube did not agree. I was shooting cast boolits with ben red, felix and 666+1 as well. possible one of 3 had a blow back in the gas tube and reacted?

  4. #4
    Boolit Master corey012778's Avatar
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    when I thought I got all the strange crystals out, it bites me in the well. went to the ranges to finish up some j word sight in for hunting season. was doing great until the last two shots. hang fire type deal. open it up at the range there it was in the fire control group. did a couple dry fires with it open. a delay in the hammer. that stuff cost me a good group. got home, took the thing apart. sonic clean the fire control group in 50/50 purple power and water. cleaned the pocket with a sonic toothbrush and mean green repeated with hoppes. found the crystals in the bolt catch and the front receiver pin. all cleaned out. oiled with my old standby REMOIL.

    also looked at my reloading note book. loaded the rounds I fired with the wrong powder. good thing I they it was under max and accurate. lol


    also came home with more brass then I went with. someone was shooting 300bo and left their brass.


    good bad and ugly type day.

  5. #5
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    Sounds like all way not a complete loss .. mo brass
    I carry a Nuke50 because cleaning up the mess is Silly !!

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  6. #6
    Boolit Buddy
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    Previous owner cooking meth in there? Last name wasn't White?

    People talk about WD-40 hardening over time, perhaps other products do, too.

  7. #7
    Boolit Master corey012778's Avatar
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    Quote Originally Posted by Speedo66 View Post
    Previous owner cooking meth in there? Last name wasn't White?

    People talk about WD-40 hardening over time, perhaps other products do, too.
    My ar is a 80%, and I don’t cook meth and my last name is not white lol

    I tried a non gun related dry lube. One of those, I had Luck with silicon and Teflon auto lubes why not. Been having bad primer pocket issues (pinned what brass). Still wondering if that in combination with the different lube may have drew out salts. Seemed to come off easier then I thought it would.

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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