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Type: Posts; User: GGaskill

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  1. Replies
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    1,689

    AI cases don't form reliably because of the steep...

    AI cases don't form reliably because of the steep shoulder angle. But it might be worth the trouble to contact RCBS and see if they have forming dies. If they did, it would at least imply that it...
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    679

    I would be surprised if a Tikka didn't have...

    I would be surprised if a Tikka didn't have metric threads.
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    1,689

    What is the shoulder diameter of a 7-08 AI?

    What is the shoulder diameter of a 7-08 AI?
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    998

    Checking headspace in a blow back action is going...

    Checking headspace in a blow back action is going to be a challenge. Before buying gauges, I would measure the depth of the counterbore in the bolt with a depth mike. Unless the bolt bears on the...
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    I am not sure exactly what that video is showing....

    I am not sure exactly what that video is showing. It appears to be showing a mathematical simulation based on 6DOF modeling of an initial rate of yaw of 25 radians per second. The question then...
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    998

    One other question: what brand of ammo are you...

    One other question: what brand of ammo are you using? Maybe you should try another brand.
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    998

    Do the cases that fire normally have a normal...

    Do the cases that fire normally have a normal strike or a weak strike?
  8. Thread: Muzzle brake?

    by GGaskill
    Replies
    51
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    4,821

    I think this thread has reached the end of its...

    I think this thread has reached the end of its usefullness so I am closing it.
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    If you are looking for accuracy, you would...

    If you are looking for accuracy, you would probably have to replace the .224" barrel with a .222" rimfire barrel. I would also expect the bolt would have to be converted to a two piece bolt with a...
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    The upper/lower combination is $225? What kind...

    The upper/lower combination is $225? What kind of magazine is it set up for?
  11. Thread: Muzzle brake?

    by GGaskill
    Replies
    51
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    4,821

    We have and can tell you from experience, they...

    We have and can tell you from experience, they work with 300wm, 30-338, 338 edge and 30stw for over 1000 rounds.

    So how much flame cutting/erosion do you see after 1000 rounds?
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    You can always bid the job as "Time and...

    You can always bid the job as "Time and Materials" and see how that flies. You take it if the customer takes it.
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    Have you done the math for this? M15 is...

    Have you done the math for this? M15 is nominally .590" and 5/8 is .625". that gives you .035"/2 = .0175" thickness in which to cut the 24 TPI threads. Looks like the minor diameter of 5-8-24 is...
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    So is it essentially impossible to build a retro...

    So is it essentially impossible to build a retro 10 with the charging handle in the carry handle from purchased parts then?

    I suppose you could design one from original parts if you had the right...
  15. If you are going to face the receiver, do that...

    If you are going to face the receiver, do that before measuring.
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    2,032

    What about repairing the receiver? The safety is...

    What about repairing the receiver? The safety is not at the high pressure end.
  17. Replies
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    1,206

    1 mm pitch is 25.4 TPI so 25 TPI would be better...

    1 mm pitch is 25.4 TPI so 25 TPI would be better if your machine will do it.
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    The currently built "AR-10's" are not copies of...

    The currently built "AR-10's" are not copies of the real AR-10's of the late '50's/early '60's and do not include the combat-driven improvements of the last manufactured batches. They are...
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    Might be a good idea to make a sleeve that you...

    Might be a good idea to make a sleeve that you could slide onto the barrel, true, and let it ride in the steady rest. Unless you remove the fluting entirely, you will have ugly burrs left on the...
  20. Thread: stuck bullet

    by GGaskill
    Replies
    40
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    21,956

    Gun powder does not have an expiry date ... ...

    Gun powder does not have an expiry date ...

    While that statement is somewhat true, smokeless powder does not last forever. Certain kinds have very long lives but my guess is that the reason the...
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    Headspace gauges should be the standard belted...

    Headspace gauges should be the standard belted magnum gauges unless you want to headspace on the shoulder.
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    I think we have reached the useful end of this...

    I think we have reached the useful end of this thread so I am going to lock it. If anyone with a satisfactory answer to the OP's question reads this far, please start a new thread with that answer.
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    No idea if you didn't have an infrared...

    No idea if you didn't have an infrared thermometer to measure it. But Loc-tite melts around 400°F so if you had torque on the barrel while you were heating it and twisted it out once it started to...
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    If you have Parkerizing on the inside, I would do...

    If you have Parkerizing on the inside, I would do something to smooth it. New Parkerizing is pretty rough and will "bite" into soft metal like cartridge brass which likely is your problem.
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    4130 will not get as hard as 4140 because it has...

    4130 will not get as hard as 4140 because it has less carbon. That makes it better for welding.
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