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Type: Posts; User: pat_j0nes

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  1. Replies
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    387

    Cooper 57M barrel removal

    I have a Cooper 57M in 22LR in the shop to get threaded for a suppressor. I typically remove the barrel from the action and hold it in my headstock for threading.

    I don't do a lot of rimfire work....
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    Why not hold it horizontally in the mill vise on...

    Why not hold it horizontally in the mill vise on your vertical mill and use a keyway cutter of the appropriate size?https://uploads.tapatalk-cdn.com/20191102/d58fb237eea654d0cf17809f235a0bfc.jpg
    ...
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    I have only one Manson reamer, in 454 Casull. He...

    I have only one Manson reamer, in 454 Casull. He understood what I meant when I said I wanted a cylinder reamer. It cut 5 good chambers, but it definitely wanted to be fed in quickly.

    I used to...
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    How fast are you feeding that in? You need to...

    How fast are you feeding that in? You need to have a reasonable chip thickness to keep the reamer from chattering.

    Sent from my Pixel 2 using Tapatalk
  5. I read the CNN article. This does raise a lot of...

    I read the CNN article. This does raise a lot of questions regarding numerous modern firearm designs.

    If we find ourselves in a situation where a rifle isn't a firearm until the two halves are put...
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    Seems a lot of unnecessary work.... Sent from...

    Seems a lot of unnecessary work....

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  7. Headspace has two components, the length of the...

    Headspace has two components, the length of the chamber and the length of the ammo. I work at an indoor range and I have seen a lot of problems with white box, including case length. Feed the gun...
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    Karl does great work, he's done quite a bit of...

    Karl does great work, he's done quite a bit of barrel fluting for me.
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    You need to have .005 clearance on all surfaces....

    You need to have .005 clearance on all surfaces. If a bristle from a cleaning business breaks off, you want the rifle to still work. When you screw a barrel on to the action the shoulder sets back...
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    Robar is no more

    I just had a bolt returned to me with no NP3 done. They sent a letter explaining that they are shutting down their firearm operations. I'll have to eat some shipping costs, seems odd they wouldn't...
  11. Yes, less length sticking out is better, just...

    Yes, less length sticking out is better, just leave yourself a little bit so you don't have to move the barrel if you need to push the shoulder back to correct a problem.

    How and where are you...
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    A stripped Mauser action? Doesn't look rare to...

    A stripped Mauser action? Doesn't look rare to me. Any collector value was gone with the rest of the parts.

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    Not accurate enough for the purpose. You can...

    Not accurate enough for the purpose.

    You can make a v block and do math.

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    I chose safety orange for my tools a long time...

    I chose safety orange for my tools a long time ago, but somehow my smallest ball peen hammer ended up Tiffany blue.

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  15. This is very similar to what I do. I leave the...

    This is very similar to what I do. I leave the bored hole .010 smaller than the final shoulder diameter and .050 short of the final shoulder location. I chamber using a JGS reamer holder.

    Sent...
  16. Classes can be cheaper than screwed up rifles. ...

    Classes can be cheaper than screwed up rifles.

    NRA Explore | NRA Gunsmithing Schools

    NRA classes at TSJC is how I got started in this trade. If nothing else it makes a nice vacation, in my case...
  17. Thread: Cerakoting

    by pat_j0nes
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    7,144

    Which model? Sent from my Pixel 2 using...

    Which model?

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  18. Replies
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    For everyday gunsmith threading you just make the...

    For everyday gunsmith threading you just make the threads to fit. If I need to know the pitch diameter I'll use a thread mic or go/no go gauges. I watched most of their video and Flexible Measuring...
  19. I can't imagine anyone caring. Sent from my...

    I can't imagine anyone caring.

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  20. Not sold. We get handouts of stuff in class, I...

    Not sold. We get handouts of stuff in class, I got enough to fill two 4" binders. There isn't a gunsmithing textbook that has all of this stuff in it, so the handouts effectively create one.

    Sent...
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    The 308 sized ARs are proprietary. There's two...

    The 308 sized ARs are proprietary. There's two general patterns, the DPMS and the Armalite. I am not aware of any drawings.

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    Will your chamber work with factory ammunition?...

    Will your chamber work with factory ammunition? That would isolate any problems to the rifle not the ammo.

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    I have stopped buying PTG reamers and started...

    I have stopped buying PTG reamers and started buying them from JGS. They're much nicer to work with.

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    Did this with the Mauser I built in gunsmithing...

    Did this with the Mauser I built in gunsmithing school. Fortunately I get to work on nicer stuff now.

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    I just cut my counterbores with a boring bar,...

    I just cut my counterbores with a boring bar, usually after the chamber is nearly complete. If you chamber first, there's not much left to cut.

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