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  1. Replies
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    Are we not gunsmiths? LOL

    Are we not gunsmiths? LOL
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    I would think only changes to the shoulder, or...

    I would think only changes to the shoulder, or permanent plastic deformation of the chamber would change head space. And that would be something different from wear or deformation of the threads. It...
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    Thanks, I appreciate the warning. I'm not likely...

    Thanks, I appreciate the warning. I'm not likely to be doing a lot of switching back and forth. I am enjoying the benefits of 223 over 308 at the moment. Lower reloading costs, negligible recoil,...
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    Thanks. The project went well and I am enjoying...

    Thanks. The project went well and I am enjoying shooting it. The AICS chassis that takes both magazines feeds perfectly. Scope needed a little adjusting, but the cartridge switch was a success.
  5. I am fighting to shoot 5 shot groups that come in...

    I am fighting to shoot 5 shot groups that come in at 1/2" at 100 yards or less. I am finding it very difficult as my skills just aren't there to shoot better than 1/2". Some groups come in at less...
  6. Fired 40 rounds of Hornady target ammo this...

    Fired 40 rounds of Hornady target ammo this weekend, no misfires. Fired a few rounds of Remington 55 grain, no misfires. Shot 20 rounds of my hand loads, no misfires. Also shot some Federal 62...
  7. Thanks. That is a subject I know nothing about. ...

    Thanks. That is a subject I know nothing about. I will research that. If you have any resources you can refer me to, that would be appreciated.
  8. The 150 pack of Winchester White Box 55 gr...

    The 150 pack of Winchester White Box 55 gr "target" ammo was bought only a couple of years ago. I bought it for something cheap to shoot from my heavy barrel AR. Now that I read the reviews on...
  9. Shoots excellent. I am going to have to up my...

    Shoots excellent. I am going to have to up my game to determine just how excellent. It shoots both 69 grain and 75 grain match bullets very well. Under 1/2" 5 shot groups at 100 yards. I screwed...
  10. Got it as close as I could, then used a Manson...

    Got it as close as I could, then used a Manson floating reamer holder. Taking it to the range tonight and I'll see what the results of my labors are. I've only ever done two barrels in my life. A...
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    Thanks. All done. Might have time to take it to...

    Thanks. All done. Might have time to take it to the range tomorrow and see how it shoots.
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    Bolt nose recess depth

    I can't understand what Brownells is trying to say in note 4 where is says "Minus Dim. C from A plus 0.010 and this will give you the depth of the 0.708 cut."
    ...
  13. I just re-watched the video by "The Viper" on...

    I just re-watched the video by "The Viper" on dialing in a barrel on through the headstock, and noticed that he took 40 minutes to dial in the barrel close enough to switch to a 1/10th test...
  14. I am measuring at two points in the breach area...

    I am measuring at two points in the breach area using a gritters rod and test indicator. Trying for where the bore will begin, and then 2" further towards the muzzle. Its the dance back and forth...
  15. Process of dialing in a barrel though the head stock

    I am trying to dial in a barrel that is supported at the muzzle by a spider in the headstock and the breach sticking out of a 4 jaw chuck. I have rounded brass pivot points on the 4 jaws to allow...
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    The good news is that it does work well, but as...

    The good news is that it does work well, but as said, its a one off. Took the rifle to the range last night. First three shots made it clear that the scope needed some adjustment. After all that...
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    262907 Final version.262908

    262907

    Final version.262908
  18. Replies
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    I am afraid this project is something of a...

    I am afraid this project is something of a failure. The only way to make such an adapter accurately, is to machine it on the same barrel that it is going to be installed on. There appears to be too...
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    Perhaps early Sako L-61 which used 1x 16tpi. ...

    Perhaps early Sako L-61 which used 1x 16tpi. They also list AV1 and AV4 in the notes I have. I am not certain about the shank length however.
  20. Taking classes is a good idea. The book by...

    Taking classes is a good idea.

    The book by John Hinnant is an excellent step by step guide to fitting a rifle barrel. Very detailed, explains everything from tooling, fixtures and procedures.
    ...
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    One of the challenges in this project is having...

    One of the challenges in this project is having the two machining operations on opposite sides of the adapter, concentric and in axial alignment. One the internal drill and tap, and the other the...
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    I have some stainless and some 1045 steel coming...

    I have some stainless and some 1045 steel coming to work on the next version. Some of the things I'm learning by doing, and don't have the experience to anticipate all issues, or plan them out ahead...
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    That's a good suggestion. I've turned them down...

    That's a good suggestion. I've turned them down to 1/2-28 and used a brake designed for a 223, having reamed it out for 308 clearance. That worked very well, but its a one way trip for that barrel....
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    The barrel I believe has to seal to the adapter...

    The barrel I believe has to seal to the adapter internally, by having its nose seal up against the inner surface of the adapter. At least that's the way it works with an M14 flash suppressor. The...
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    Attached to a barrel stub from a metric M14. I...

    Attached to a barrel stub from a metric M14. I am going to make another with more pleasing dimensions, but this is my first one.


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