Recent content by MSTN

  1. MSTN

    Direct thread can backs off

    I have a strong affinity for direct thread cans, myself. Saves the weight and expense of a muzzle device. About 0.030" - 0.050" worth of spare spare shims plus 20 FT-LB of torque works for me.
  2. MSTN

    Proof Research 22ARC barrel issues

    Gas port erosion has been with us forever. It's just with the advent of more reasonably priced borescopes that that we all get to watch it happen in real time. Different barrel steels behave in different fashions at the gas port. Gas port erosion really doesn't hurt the barrel's performance as...
  3. MSTN

    JB’s Bore Paste & ARs

    Barrel cleaning advice is more about opinions and guesswork than anything approaching science. Here are a few of my non-scientific opinions: When starting out with a new hammer forged, chrome lined barrel (e.g., Noveske), JB Bore Paste (600 grit) is very helpful getting all that release agent...
  4. MSTN

    308 AR10 Build Info/Picture Thread

    My last Seekins SP10 Builder's Kit - Proof 22" SS 6.5 CM barrel; SLR adjustable gas block; HUXWRX 7.62 brake; JP FMOS bolt carrier group; TriggerTech Diamond trigger set to 1.75 LB; JP SCS H2; Magpul Furniture.
  5. MSTN

    SP10 builder kits discontinued

    Typo - It's a 22" barrel:
  6. MSTN

    SP10 builder kits discontinued

    I've got one SP10 Builder's Kit left... Just finished building it up with: Proof 20" SS 6.5 CM barrel JP FMOS BCG w/ Enhanced Bolt JP SCS Heavy H-2 Trigger Tech Diamond trigger (1.75 LB) SLR Adjustable Gas Block HUXWRX 7.62 brake Accuracy Int'l Dark Earth Cerakote I'll try to get some...
  7. MSTN

    WHY????? Mag feed vs. Hand feed

    A 0.142" 5-shot group?!? I don't care how you did it. I'd pay you to teach me your technique. LMK if you're ever in Arizona. What follows is just one person's opinion. To get the best performance out of a "loosey-goosey" gas gun, it helps if we minimize variables. 1. You're creating a whole...
  8. MSTN

    WHY????? Mag feed vs. Hand feed

    Please tell us more about: 1. How the weapon is oriented when you load the first round from the magazine when firing semi-auto. 2. How many rounds you load in the magazine when firing semi-auto. 3. Your recoil spring and ... 9 ounce buffer???
  9. MSTN

    SIG Rattler 300 blackout suppressor recommendations

    High flow rate cans like the otherwise superb HUXWRX Flow 762 Ti don't do well with subsonics. Another thing to consider besides length is weight of can plus muzzle device. Read up on Pew Science test results. You'll like the CGS Hyperion in spite of the length. Direct thread and only 15.5...
  10. MSTN

    6mm arc sbr/ pistol?

    12.5" Craddock Precision Bartlein 1x7.5" & Hornady 6ARC 106 TAP - 2405 FPS Temperature 90 degrees F
  11. MSTN

    The AR15 Picture Thread

    Here's another 16" 6mmARC built on a V seven receiver set with Proof carbon fiber 16" barrel, JP FMOS bolt carrier group, TriggerTech Diamond trigger (set to 1.75 LB), BCM MK 2 recoil system, and just about every titanium parts V seven makes. Just 6 LB 3 OZ - and capable of 1000 yard hits.
  12. MSTN

    The AR15 Picture Thread

    18" Proof carbon fiber 6ARC barrel with Rogue Ops receiver set and rail. HUXWRX Flow 762 Ti and LRA Scout bipod. Kahles K525i in SIG mount. Weight of rifle alone is 6 LB 12.6 OZ. Pretty light for a 1000 yard gun! Either Hornady put out an amazingly accurate lot of 108 ELD-M or this is a magic...
  13. MSTN

    6mm ARC for 1k yards build

    I live at 5000', so shooting long range is easier for me than folks stuck closer to sea level. I have no problem at 1000 yards with the 6ARC out of an 18" barrel. For people closer to the center of the earth, there's this 20" Proof SS on a Radian builder's kit that might work:
  14. MSTN

    What is a good receiver set to do an AR10 build with?

    Seekins SP-10 Builder's Kit - if you can find one.
  15. MSTN

    Accuracy International Picture Thread

    No - a KAC PVS-30.
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