Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: MilGunsmith

Page 1 of 46 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    15
    Views
    2,399

    The benchrest shooters build switch barrel rifles...

    The benchrest shooters build switch barrel rifles all the time. They have none of these problems.
  2. Replies
    11
    Views
    1,591

    The other major barrel steel is 4140. Just use...

    The other major barrel steel is 4140. Just use one of the two materials that every barrel manufactures use.
  3. By the way, those numbers work for most Small...

    By the way, those numbers work for most Small rifle primers. When you change to Large rifle primers , like .308, .30-06, etc, the protrusion is .060" to .068" and an indent of .020" to .025". In...
  4. Firing Pin Protrusion on a .223 Rem (5.56mm NATO)...

    Firing Pin Protrusion on a .223 Rem (5.56mm NATO) is supposed to be .030" to .039". Firing Pin indent in a SAMMI copper is supposed to be .020" to .025". This is the standard for DOD and NATO ammo...
  5. I use Rigid Dark Sulfur cutting oil mixed with...

    I use Rigid Dark Sulfur cutting oil mixed with 10% Tap Magic, brushed on for most steel. WD-40 for aluminum, and bacon grease for really tough cutting steel. Small US Gov R&D shop we have tried...
  6. Replies
    42
    Views
    3,755

    I think that Kunhausen has a book on it. I would...

    I think that Kunhausen has a book on it. I would make up some dummy rounds and coat them with a marker as you work on the feed rails. This will show where they hang up.
  7. Replies
    23
    Views
    2,383

    The TM Technologies website above has a very...

    The TM Technologies website above has a very helpful tech section on various methods. Aircraft Aluminum welding I believe is still required to be gas.
  8. Replies
    42
    Views
    3,755

    Yes it can be made. Many have been done in the...

    Yes it can be made. Many have been done in the past. The .458 was designed to fit in a 30-06 length action. Parker Hale made many factory guns in that caliber and action. I have one that was done in...
  9. Replies
    11
    Views
    1,825

    The weights are all that is legal for use when...

    The weights are all that is legal for use when checking triggers at a match.
  10. Replies
    21
    Views
    1,463

    Besides a belt routing drawing, write down all...

    Besides a belt routing drawing, write down all the belt numbers and locations. I order them online and keep a set on hand. A lot cheaper than trying to get a belt on a Saturday afternoon when your...
  11. Replies
    11
    Views
    1,825

    All the matches that I have been to use the...

    All the matches that I have been to use the weights with a hook. Brownell's sells a set with either a rifle hook or a pistol one. I usually set the trigger a hair heavyer than minimum just to ensure...
  12. I use the same setup. Well lubed, no marks.

    I use the same setup. Well lubed, no marks.
  13. I remember being told by a movie weapons prop...

    I remember being told by a movie weapons prop master, that the Star pistils were used because they could be made to fire blanks easier than a 1911.
  14. Replies
    43
    Views
    36,035

    I use an action truing fixture for barrels that...

    I use an action truing fixture for barrels that are too short to fit the spindle
  15. Replies
    13
    Views
    2,234

    Both MG Julian Hatcher "Hatchers Notebook" and P....

    Both MG Julian Hatcher "Hatchers Notebook" and P. O. Ackley's books have chapters on blowing up rifles.
  16. Replies
    51
    Views
    5,433

    For a muzzle brake to work effectively, it needs...

    For a muzzle brake to work effectively, it needs a high pressure at the muzzle to generate the force needed to fight recoil. Easily proven by shooting subsonic loads versus standard loads. Filming...
  17. Replies
    13
    Views
    2,234

    Somewhere I have a picture of a H&K .45ACP SMG...

    Somewhere I have a picture of a H&K .45ACP SMG barrel that I sectioned. The Police Department was training on range with that and .40S&W Glocks. A .40S&W round got mixed with the .45ACP as they where...
  18. Replies
    7
    Views
    1,271

    According to USGI specs for ammo acceptance...

    According to USGI specs for ammo acceptance testing using a Universal Receiver: Firing Pin Protrusion is .074" to .082", Firing Pin Indent is .020" to .025" in a SAMMI spec copper cylinder. Firing...
  19. Replies
    7
    Views
    1,271

    For what type of system? M2, M107, Universal...

    For what type of system? M2, M107, Universal Receiver? Each is different. I have a chart at work, can get it Monday.
  20. Replies
    51
    Views
    5,433

    I build pressure test barrels every day. On a 20"...

    I build pressure test barrels every day. On a 20" barrel in 5.56mm the port pressure at 4.5" from the muzzle is in the 10000psi range,from 60000psi at chamber. I can't see pressure dropping to...
  21. Replies
    36
    Views
    12,425

    I will try to get some pictures and a list over...

    I will try to get some pictures and a list over the weekend. I know in addition to the lathe, there is a cross feed slide attachment and a saw table. I think there is a double arm scroll saw...
  22. Replies
    19
    Views
    2,181

    NJ considers everything a firearm. Need FID or...

    NJ considers everything a firearm. Need FID or pistol permit even for a BB gun or a muzzleloader.
  23. Replies
    36
    Views
    12,425

    I have found in my shop cleaning out a...

    I have found in my shop cleaning out a Goodell-Pratt lathe with many attachments. I am willing to part with it either complete or as parts. Please let me know what you want.
  24. Replies
    19
    Views
    2,181

    The plater needs to know about working on guns,...

    The plater needs to know about working on guns, as some surface dimensions are very critical to operating. I had a customer bring me a M1911A1 years ago that he had all the parts Black Chrome plated....
  25. Replies
    59
    Views
    6,887

    I use the AR Warner TPMC 32 NV HSS insert for...

    I use the AR Warner TPMC 32 NV HSS insert for threading. They are a positive rake.
Results 1 to 25 of 1131
Page 1 of 46 1 2 3 4