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Thread: 7mm-08 reloads extraction issue - thoughts please

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  1. #27
    Member
    Join Date
    Feb 2020
    Location
    Scotland
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    1,328
    Quote Originally Posted by Jhon View Post
    Well I did abandon physics in Form 6 as neither my head nor my math was up to it, but happy to take you word for it. The dealer agrees with you and in a nutshell offered the the 3 lug bolt design found on the Ruger, and other rifles, is inclined to produce this extraction issue when, like you say, brass is resized enough to chamber but not sufficiently at the last few mm of the base which expands to cause a bind. A 2 lug like a Mauser design has a lot more extraction power, apparently. So the fix according to the dealer is to look for issues like the press is not sufficiently anchored to prevent "bounce" and incomplete FL sizing, operator error, slightly overspec dies. He didn't say but probably case brass variations also. Anyway, he is lending me a set of used Hornady dies to try something different. Not having a small base die. After that it will be sending some off to @sneeze to run thru his. We are marking the cases that won't extraction until they cool.

    Interesting problem. Thanks for all the input. Will update.
    If the dealer is admitting something is wrong (which there clearly is), then they have to either fix it for you or replace/refund.

    Had to deal with my fair share of professional shysters in the UK selling second-hand rifles, honestly second-hand car dealers are more reliable and trustworthy. Once got sold a rifle with an under-sized chamber (someone rechambered from 222 to 223, and did a poor job), then a 7mm-08 where the idiot had replaced the bolt with a crap PTG unit and fucked the job, due to the fact the locking lugs did not match those of the original bolt, leaving excess headspace.

    The situation you are in reflects the problem I had in the second instance, rifle would chamber factory ammo fine and fire, but on extraction (lifting bolt and pulling back) the bolt would lift easily, but be very difficult to actually pull back. It was clear what was happening, as the brass would show signs of stretching (get yourself a case gauge-where you drop the brass in).

    Impossible to explain how else you are getting issues. If you follow my instructions this will more than likely show up as being the problem (your fired cases should also show signs of excess length, growing a lot lengthways during firing). I'd insist to the dealer that they fire a few shots themselves and see. The fuckwits who sold me the rifle with excess headspace told me their gunsmith reckoned that 'All Remingtons are like that'.

    Thankfully I managed to replace the bolt with an original Remington one off a shot-out rifle.

    Never ever used them again, complete idiots.

 

 

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