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  1. sinister

    Old Powder Warning

    I just threw out 250 x 80-grain 5.56mm 600-yard cartridges I bulk-loaded in 2020 with VV N135. This ammo had been stored in plastic bags in air-tight .50-cal cans in climate-controlled space. All cases and primers were tarnished and corroded, as well as a few of the Sierra bullets. I guess...
  2. sinister

    Original Army SF 5th Group used LaRue Stealth uppers!

    The Iraqi National CT Force Military Training Team Sergeant Major (detached from 5th Group) carried one from '07-'08. You can imagine, as a sergeant major's rosco it was more of an office queen carbine than a nightly pipe-hitter's gun.
  3. sinister

    Armscorp "M21" Marked M14 NM Semi-Automatic Rifle with ART II Scope

    When I went through the USAMU Sniper course in October - November 1982 we shot M118 Match. Later issue was M852, then M118 Special Ball.
  4. sinister

    Interesting M25 Info and Pics

    Guidance for M21 and M14NM cleaning was disassembly only if necessary, usually once a year for gunsmith inspection and skim-bedding. M14 shooters usually got a new barrel every other season.
  5. sinister

    Interesting M25 Info and Pics

    USAMU and Crane both had their separate ways of doing things. I think unless you were a Camp Perry competitor you wouldn't know what was and what wasn't allowed by National Match rules and the Army regs (Army Ordnance and TAACOM published a new book for every Camp Perry showing what new was...
  6. sinister

    .223 Wylde Chamber in Trainer?? I don't get it. . . or do I?

    A 223 Wylde throat should give you great precision with 73-77 VLDs through maybe 7500-10,000 rounds. You'll never generate heat on the throat and leades like you will with an autoloader. If you free-bore longer with a Ned Christiansen 5.56 neck and throat reamer you can use 80s if you have a...
  7. sinister

    Interesting M25 Info and Pics

    Mike and I are brothers of different mothers, both having been on the same ODA and B Team. He went from ODA to ODB kicking and screaming but I think eventually came around to doing more for SF and the Army than had he stayed. Lots of things between Big Army and SOCOM were in flux as SF and the...
  8. sinister

    Interesting M25 Info and Pics

    10th Group failed to keep up with paperwork. All Army units are authorized to maintain competition-modified National Match weapons per obscure Common Tables of Allowance and Tables of Distribution and Allowances -- why the USAMU, National Guard, and Army Reserve Teams can keep M14s, .45s, M9s...
  9. sinister

    Federal 308 Premium Gold Medal 168gr Sierra MK velocity out of my AR10

    Ain't no way 168 FGMM is doing 2255 out of a 20-inch, even if it was a smoothbore .315. Garbage in, garbage out. You're guessing/interpolating, not reading off true velocity.
  10. sinister

    Sako TRG 42 pre 2013

    Nah. The Finns use hammer-forged barrels. I don't remember the exact round count number, but the Finnish Army yank them when the rifle no longer groups minute-of-angle. The 1-12 twist isn't ideal for 300s, but they won't hold you back, either. If you're only occasionally shooting past 1,000...
  11. sinister

    Sako TRG 42 pre 2013

    I've shot 300 Scenars and Match Kings through my 1-12 and you'll have no issues. 99% of the rounds I have fired have been 250 Sierras and Scenars and 1% 300s and 285 Hornadys. My TRG-42 is vintage ~2003 and the most precise factory rifle I own.
  12. sinister

    Bullet Tipping and Neck Turning worth doing?

    No to both. Buy bullets already tipped (Sierra and Berger, depending on the bullet SKU).
  13. sinister

    Miami Vice "Bushido" CAR-15 w/Laser sight shooting video.

    Small world -- he was the company First Sergeant when I was the scout platoon leader in 1st Battalion, 9th Infantry, 2nd Infantry Division in Korea in 1983:
  14. sinister

    AR-10 Barrel

    The Krieger cut-rifled barrel is your best option for precision, but not necessarily so for balance and weight if you're planning to use it for anything but prone shooting off a bipod. The Walther barrel mentioned above is also a superior choice. Criterions and Shilens are good to very good...
  15. sinister

    Less concussive muzzlebrake?

    Have you tried an EFAB or Dynacomp? Lot less "Blasty" than a traditional baffled muzzle brake.
  16. sinister

    Does this look like an endcap strike?

    Looks like a metal burr that was not smoothed (rather than a strike or a skid-past). Are you using shims?
  17. sinister

    Papers Please! British Paratroopers Met by French Border Officials at D-Day Reenactment!

    I did this leaving Port au Prince Airport in Haiti in 1994. The border official looked through my passport three or four times before just rubber-stamping it and passing me through the departure gate.
  18. sinister

    Sniping In The Ukraine

    Spotter's going to get an earful from that brake as well.