milsurpcollector Posted July 20, 2008 Report Share Posted July 20, 2008 Im building a Korea-Vietnam era sniper rifle. A Win M70 30.06 with a heavy barrel and a Unertl 10X external adjustment scope. Im having a hell of a time getting the original barrel off the receiver. I use 2 2" square blocks of bar stock which is drilled for the barrel and then an aluminum bushing for whatever barrel im removing. I have a brownells receiver wrench. The barrel keeps twisting. I cannot get the barrel vise to clamp down enough. I have actually bent the 2" bar stock cranking the bolts down on the barrel. Any hints,tips suggestions would be appreciated. Link to comment Share on other sites More sharing options...
ken98k Posted July 20, 2008 Report Share Posted July 20, 2008 Are you using rosin? I sprinkle powdered rosin between the barrel and bushings, and between the bushings and blocks. That seems to work very well for me. Link to comment Share on other sites More sharing options...
milsurpcollector Posted July 20, 2008 Author Report Share Posted July 20, 2008 Thanks ken, I am using rosin, I have also sanded the barrel with some 220 grit to give the clamping surface more bite. As a last resort I will weld a plate to the barrel. I dont want to because the barrel is still in good shape. i have also tried heating the barrel with a propane torch Link to comment Share on other sites More sharing options...
AzRednek Posted July 20, 2008 Report Share Posted July 20, 2008 Try some penetrating oil into the threads. Worked for me years ago on a stubborn Spanish Mauser. The threads were rusted together. Friend and me with all our weight on a cheater pipe and all we did was bend the pipe and the barrel didn't budge. Next day my buddy got it out on his own after soaking the receiver end of the barreled action in some home made penetrating oil. Link to comment Share on other sites More sharing options...
Vladymere Posted July 20, 2008 Report Share Posted July 20, 2008 Try some penetrating oil into the threads. Worked for me years ago on a stubborn Spanish Mauser. The threads were rusted together. Friend and me with all our weight on a cheater pipe and all we did was bend the pipe and the barrel didn't budge. Next day my buddy got it out on his own after soaking the receiver end of the barreled action in some home made penetrating oil. Kroil is your friend. Link to comment Share on other sites More sharing options...
Spiris Posted July 20, 2008 Report Share Posted July 20, 2008 Kroil is real good if you let it work for a while. You won't get instant gratification. I soaked my VZ-24 action every couple days for three weeks. A little tap on the wrench spun it loose. I've been soaking my M48 action every 4 days for a month or so. I just haven't had the time to try to remove the old barrel. Just hang it barrel down and let the oil work into the threads. Is this a original M70 sniper? Spiris Link to comment Share on other sites More sharing options...
milsurpcollector Posted July 21, 2008 Author Report Share Posted July 21, 2008 Kroil is real good if you let it work for a while. You won't get instant gratification. I soaked my VZ-24 action every couple days for three weeks. A little tap on the wrench spun it loose. I've been soaking my M48 action every 4 days for a month or so. I just haven't had the time to try to remove the old barrel. Just hang it barrel down and let the oil work into the threads. Is this a original M70 sniper? Spiris Thanks I have some kroil that I let soak in the threads overnight, i will try some kroil over a week or 2. Ive got time because i have to sell some stuff to get the $ to buy a barrel. Its not an original sniper, Its a pre 64 action which is what was used. Its not a collectible, someone already D&T'd the siderail for a scope mount and shortened the stock for a recoil pad. I will post some pics of the work in progress Link to comment Share on other sites More sharing options...
tinkerfive Posted July 21, 2008 Report Share Posted July 21, 2008 Since no one has mentioned a relief cut yet I guess I'll step up to the plate. If you are careful you can make a nice relief cut and turn it into a new secondary torque shoulder and re-use the barrel just a 1/4" shorter. Give the Kroil a chance, keep a relief cut in your back pocket if that doesn't work for you. OK with that out of the way.... I sometimes use a second barrel vise further down the barrel. I made up some different taper bushings. So far I have found one or the other gives me a half decent fit. With two barrel vises so far I haven't been defeated. Tinker Link to comment Share on other sites More sharing options...
Horsefly Posted July 21, 2008 Report Share Posted July 21, 2008 Something I learned years ago working on Peterbilt trucks,was to try to tighten it even tighter then try to loosen,with a lot of pressure on the cheater,get someone to give the cheater a good whack with a 4lb shop hammer.Crushing the gunk and other stuff that may be siezing the threads by going even tighter,and then the sudden impact with a lot of pressure with lots of puckey against the barrel wrench orta do it.Don't forget the penetrating oil! I've not had any of the troubles you hear about pulling barrels off 48's after soaking in diesel a couple days and using the tighten and pressure with a whack method. Jerry Link to comment Share on other sites More sharing options...
donmarkey Posted July 21, 2008 Report Share Posted July 21, 2008 Are your shims sized right for full contact or are they a little over sized. I make mine a few thou undersize, they seem to hold tighter. -Don Link to comment Share on other sites More sharing options...
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