Re-barreling RLA, what temperature to heat action threads for factory barrel removal?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Max Heat, Sep 16, 2013.

  1. Max Heat

    Max Heat Well-Known Member

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    This will be my first time removing a factory barrel from a 700 reciever. Supposedly they put some really tough thread-locking compound on the threads, at the factory. And the best way to avoid damage [or other hassles/problems] is to "cook" the compound, so that it looses it's hold on the threads, while applying the unscrewing torque. But I have not heard anyone say what temperature must be achieved to make it happen.

    My concern is that applying too much heat could remove whatever temper might be in the reciever metal. What I'd like to know, is what temperature needs to be achieved in order to cause the compound to release, and/or what temperature should NOT be exceeded, in order to not ruin the metal's temper, if it has any. I will be using vice blocks and a #2 wheeler action wrench. For heating, I will be using a 1500W heat gun, and temperature meausurements will be taken using an infrared thermometer.
     
  2. sinarms

    sinarms Well-Known Member

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    Re: Re-barreling RLA, what temperature to heat action threads for factory barrel remo

    no heat, 700's come apart easy.
     

  3. Max Heat

    Max Heat Well-Known Member

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    Re: Re-barreling RLA, what temperature to heat action threads for factory barrel remo

    Really?

    Is that true even with only having plastic vise blocks to hold the barrel? Or do you need to use a bolt-down barrel vise with wood blocks & rosin?
     
  4. sinarms

    sinarms Well-Known Member

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    Re: Re-barreling RLA, what temperature to heat action threads for factory barrel remo

    I've taken them off multiple ways. You might need rosin to hold it in the plastic. I use a barrel vise a lot.
     
  5. Max Heat

    Max Heat Well-Known Member

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    Re: Re-barreling RLA, what temperature to heat action threads for factory barrel remo

    I don't think that a bolt-down setup is worth the $ they are asking. If one really IS needed, I can MAKE one. I would definitely prefer NOT to use heat, if it can be avoided.

    But I am still curious how much heat it DOES take to make threadlocker release it's grip. Likewise, I am also still curious what the max temp is that something can be brought up to, without dis-tempering it.