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  1. smoothy8500

    Gunsmithing Crown Damage

    Give us a report when you do.
  2. smoothy8500

    Getting a 1k class gun built

    Unless the smith is a total F-class shooter themselves, it's like asking a mechanic that built your engine what tires to get for the track....
  3. smoothy8500

    Chamber issue on Compass Lake built Aero M5

    Yes. 10 rounds at 200yd, 1-1/2" group Criterion midweight 308 20" barrel Aero upper/lower
  4. smoothy8500

    Getting a 1k class gun built

    I'm surprised that you are not getting lots of good advice from other F-class shooters in your club. I "dabble" in F-class LR with our club, mainly I shoot NRA XTC. The guys I occasionally shoot with are really high level competitors, really knowledgeable and helpful. F-class guys are all proud...
  5. smoothy8500

    7.62 Mk316-ish hand load expectations

    The classic 41.5gr IMR 4064, GI brass, with SMK 175 is one of those loads that universally works "well enough" in almost all rifles.
  6. smoothy8500

    Sizing die woes

    Does your clean, resized brass pass the "plunk" test in a clean/scrubbed chamber? Not loaded, just the brass. Drop in, drop out easily?
  7. smoothy8500

    Chamber issue on Compass Lake built Aero M5

    Not saying it's the issue here, but a large frame 308 AR is a little bit harder to drive accurately/consistently and is more dependent on shooting technique.
  8. smoothy8500

    7.62 Mk316-ish hand load expectations

    Most likely this is the load & shooters' capabilities. How does it do at distance, like 300-600yds?
  9. smoothy8500

    Difference in temp

    Hmmmm, never is......
  10. smoothy8500

    Difference in temp

    If your diopter is not properly adjusted, the focus and parallax may not be aligned and while the target image (focus) is crisp, there may be some parallax error present.
  11. smoothy8500

    Difference in temp

    OK, we've narrowed down the problem...
  12. smoothy8500

    How to improve offhand accuracy with AR15

    That's pretty good if your keeping close to that at 100 yds. Our offhand NRA targets at 200 yards is 11-1/2" so it's about the same size MOA.
  13. smoothy8500

    How to improve offhand accuracy with AR15

    I will admit that the Highpower offhand position is not optimum for other shooting sports such as practical carbine or some other "run-n-gun" shooting. But, the fundamentals of "sight focus" and dry-fire practice to reduce your wobble zone are universal to any shooting sport.
  14. smoothy8500

    How to improve offhand accuracy with AR15

    A lot of dry-fire practice is the key. Yes, there's wobble, but as you learn to control the rifle, the wobble diminishes. Another key is maintaining a "sight focus" on the crosshair or dot of your scope. You will develop the subconscious coordination of the eye and trigger finger to fire as the...
  15. smoothy8500

    Gunsmithing Are All Headspace Gauges Created Equal ?

    They make them....but you're going to pay through the nose for it. If you don't trust your gauges (dropped/damaged), toss them and buy new ones from a qualified mfr.
  16. smoothy8500

    AR-10 Barrel

    I mean sure, wind and mirage can definitely affect group size. So in theory my rifle could be MOA capable or maybe sub-MOA, and yours could be too. But it's not like distance magically multiplies mistakes. Like I mentioned, the large-frame AR sitting on a Harris bipod is just more difficult to...
  17. smoothy8500

    AR-10 Barrel

    Realistically, both those ammo should do well in your rifle. A lot of it is the 308 AR is dependent on fundamentals: Consistent pull into the shoulder, sight focus, managing the bipod, etc. My background was NRA service rifle (sling, glove & coat) and now re-learning with a bipod; F-class T/R...
  18. smoothy8500

    AR-10 Barrel

    Similar as you. The target I posted above (#84) has the majority of 20 shots within 1.5 MOA at 500yds. Each grid line is 1 MOA. Shooting a 308 AR off a bipod adds a certain level of difficulty compared to a bolt action.
  19. smoothy8500

    AR-10 Barrel

    My "Blem" Rubber City BCG with Fulton Criterion barrel passed "Go" and "No-Go" gauge test. As padom states, it's not necessarily a accuracy enhancement, but function and safety. The early days of 308 AR's there were a lot of compatibility issues since there was not set "standardized" designs...
  20. smoothy8500

    Match barrel . . . Really?

    Eh, I don't think Mr welditforyou is going to come back to this posting.......