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  1. Sum Ting Wong

    Rifle shoots 24 inch group at 500 yards

    What varieties of factory ammo have you tried?
  2. Sum Ting Wong

    Rifle shoots 24 inch group at 500 yards

    Try some factory ammo. This group was shot at 560 yards with my .223AI and some factory AAC 77gr TMK 5.56.
  3. Sum Ting Wong

    223 Ackley Improved

    I use the Lee to bump, works fine.
  4. Sum Ting Wong

    Rimfire Barrel Thought

    When I was machining for a PCP airgun company, we tried to add a choke to new barrels. Nothing we tried in house had an affect on bore diameter. We never tried a multi die hose crimper, but you’d need a custom set of dies as most crimp in a slight hex shape. You have to remember that you’re...
  5. Sum Ting Wong

    Gun talk at work

    One of the anniversary gifts from corporate is a spotting scope. It’s a garbage Bushnell, but it’s the thought that counts, I guess.
  6. Sum Ting Wong

    Does my gunsmith suck?

    That’s really bad, looks like he used a countersink for the crown and a die for the threads… What does the tenon look like?
  7. Sum Ting Wong

    "Ukrainian sniper shoots Russian from '1.68 miles away' – the second-longest kill ever"

    I lived in a literal dirt hole for 56 days straight in Afghanistan, does that count?
  8. Sum Ting Wong

    "Ukrainian sniper shoots Russian from '1.68 miles away' – the second-longest kill ever"

    Odd, my FN ran just fine in a couple different third world countries.
  9. Sum Ting Wong

    2403-yard shot on a can of red bull, sounds like a load of bull.

    I think he was saying the app was pretty close, not the hole comparison.
  10. Sum Ting Wong

    I blew up my rifle!

    That amount of deformation on the extension points to it being in battery.
  11. Sum Ting Wong

    I blew up my rifle!

    Yeah, I’m not saying it couldn’t happen. The rod I have in the bore runs all the way out to the bench and is pushing the bolt back. I guess I could try to see exactly how much rotation is needed to get it to indent the primer, but his setup could be way out of spec, so that probably wouldn’t...
  12. Sum Ting Wong

    I blew up my rifle!

    If the bolt retracts into the carrier any more, the lugs would be locking up.
  13. Sum Ting Wong

    I blew up my rifle!

    I had to test the OOB theory out for myself. My test probably isn’t perfect, but it was the best I could do at home. I took a rod that was longer than the barrel to act as the bore/chamber obstruction and put a primed case on it(rod runs down into a bench block). Then I closed the bolt to the...
  14. Sum Ting Wong

    Is breaking in an AR barrel really worth it? What is your process with a new barrel?

    Joe Carlos, gunsmith, builds CMP and NRA match rifles, at least that's what the web says...