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Thread: Case hardening a tikka recoil lug

  1. #1
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    Question Case hardening a tikka recoil lug

    I am bedding my 300 Win Mag Tikka T3X and noticed that even the mild steel recoil lug has some surface damage from the 50ish rounds it has fired.

    anyone ever tried case hardening these recoil lugs in the garage with a torch and some charcoal? seems like it should work fine but interested in getting opinions... once its bedded in the glass it will be a biatch to change if something goes bad.

    Mark

  2. #2
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by MGNZ View Post
    I am bedding my 300 Win Mag Tikka T3X and noticed that even the mild steel recoil lug has some surface damage from the 50ish rounds it has fired.

    anyone ever tried case hardening these recoil lugs in the garage with a torch and some charcoal? seems like it should work fine but interested in getting opinions... once its bedded in the glass it will be a biatch to change if something goes bad.

    Mark
    If it gets harder than the action, it will flog that out instead of the lug ???

    You can turn it around & end for end before it needs replacing, if it ever does

  3. #3
    Member 40mm's Avatar
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    Quote Originally Posted by Kiwi Greg View Post
    If it gets harder than the action, it will flog that out instead of the lug ???

    You can turn it around & end for end before it needs replacing, if it ever does
    good point
    Use enough gun

  4. #4
    Member Mathias's Avatar
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    I'd imagine with a good bedding job, there would be less movement on the recoil lug and your problem may well be fixed.
    MGNZ likes this.

  5. #5
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    Thought about that Greg, but assumed my home case hardening wouldn't be harder than the actions steel - but that is an assumption. Think you are right there guys - will flip it over and use it as-is. Cheers

  6. #6
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    You could try to find out what the hardness of the action is, then work back to that if you have to heat treat the lug. Gunworks do a stainless version for not a lot of coin...

    The only times I've bothered to work on that poxy system I roughed up the lug, temporarily hung it on the receiver with superglue then glued the lug into the stock as part of the bedding system never to shift again. As far as I know, the Devcon hasn't failed and the rifles are still shooting. The reason in both cases was incorrect assembly after the owners had a tutu and the recoil lug and stock recess got FUBAR'd...

  7. #7
    Member Cordite's Avatar
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    If it's stainless steel it will likely be work hardening anyway, making case hardening less important.

    Anyone who've tried to drill stainless steel with a HSS drill bit will know what I mean: half a millimetre in and you bottom out.
    mucko likes this.
    Guns don't kill people - drivers do.

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  8. #8
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    Drilling SS is all about correctly sharpened drill bits and selecting the right speed and feed to get under the work hardened layer each time. As with everything, ignorance is bliss but doesn't guarantee results!
    veitnamcam likes this.

  9. #9
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    Quote Originally Posted by Mauser308 View Post
    Drilling SS is all about correctly sharpened drill bits and selecting the right speed and feed to get under the work hardened layer each time. As with everything, ignorance is bliss but doesn't guarantee results!
    @Mauser308

    Thanks. Yes, that makes sense, I was being too hard on the old HSS there. Guilty as charged of blaming my tools.

    To finish by bottoming out story, I did not have a fancy cobalt drill to save my day but in the end I got nicely through the work hardened surface with a sharpened TC insert masonry drill bit. I'll go back to HSS in the first instance next time as I've got more of those to ruin.
    Guns don't kill people - drivers do.

    The Hedgehog Preservation Society

  10. #10
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    I've been guilty of using masonry bits on manganese steel before, never found the need on stainless. Don't be nice to it, sharp drill with a good profile and plenty of feed. No worries!
    Cordite likes this.

 

 

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