98Z5V

I usually catch it when I do that, and laugh about the 390-second shot string we just logged... Then I turn it off, because the other firing is still going on. I have come back to it much later, and it's sitting on the table, powered down from inactivity. It clears all shot strings when it's turned off (or goes off), so I never know how long it ran before it ran out of things to record and shut down due to inactivity.

Your number is off, making it appear even worse. 12.125" would be 12 1/8". It's not 12 1/8" long - it's 12 1/16" long. 12.0625"...

You have a barrel that has a gas port drilled in it, in a position that the barrel maker thinks is okay for both types of gas tubes. Your gas port is in your barrel in a "compromise position." You are correct that the Armalite AR-10 Carbine will extend into the cam pin cutout just slightly more than half way. If does not interfere with the gas key on the carrier, and will not bottom out in the gas key. Your other choice is a custom-lengthed gas tube from White Oak Armament. Thank your barrel maker for following the brilliant idea of a gas port location that is not DPMS-based, and not Armalite-based. They're the ones that put you in this situation.

Ah, valid observation - and correct. If we ran the timer on a course of fire, and just set the timer on the table afterwards, it would keep going and recording shots, as long as it has something to record. If people continued to shoot, all day long, it would have one LONG shot string recorded. It times out after that last shot recorded, and shuts itself off, if there are no more sounds to log. If the shooting never stops, it lists a big shot string.

12 1/16".

I'm dyin' over here, over that one!!! I don't have to set it to record - just hit the GO button, and it's recording time from the beep, either immediate beep, or preset for a delay - it starts counting time right then, once the beep goes off. It never gets any adjustment, and it doesn't have any adjustment capability in it, besides how you set it to run for you, with presets. I've honestly never tried the shot timer with a suppressed rifle - but I will in March, at the Spring Shoot. Feedback will hit this thread, with videos. I'll shoot anything, any caliber with the shot timer, if I want to work on that particular gun. I've shot the 45-70 lever gun with the shot timer, so I could see how fast (SLOW) I was with running the lever, and getting the next round on target. Pistols, rifles, run-n-gun courses of fire, pistol multi target courses of fire, whatever. I've run the shot timer on the 450 yard target and the Mk12 Mod 1, to see how long it takes me to get a 20-rd mag into the target, and check my time between shots. I can tell when my Natural Point of Aim is off, by the times - I'll rock the hell out of that target once my NPOA is set, 20 round on steel at 450, no misses, much less than 20 seconds. If I'm off with my NPOA, I have to muscle it a few times, and I go over 20 seconds. Next time I set the 450 up, I'll run a solid time on it - and snatch a video. For an accurate caliber count, I'd have to say it's measured .22LR, 9mm, .40, .45ACP, .45 Long Colt, 5.56, .308 Win, .338 Fed, and 45-70. We might have run the timer against the .458 SOCOM a few years ago, when guys were using it to make a giant fireball at night - but I'm not sure. Shot timers have a million uses, from pistol work to precision, distance work. You just gave me an idea that we'll try out at the Spring Shoot - timer goes off, THEN you get down behind your distance gun and see how long it takes to make your first hit on the 845 yard target...

Looking forward to seeing more about this rifle - from (only one other) previous person here, it looks like they're built on Matrix receivers. We've got Matrix covered in spades. Welcome...

That's the scariest thing that you discover, once you start using a shot timer, no joke. As SOON as you start making improvements that you can see (right there, on the timer display), you just get better and better - and realize that you sucked before... I've been using one since 2011 or 2012. It'san invaluable training tool, if you are intent on "training to improve." You simply cannot do it, without one. I use this video often, as a demonstration of timer use - keep in mind, this is "slow motion" draw strokes...

Haha! That's incredible!!! I'd say that the enclosure should be - whatever you are planning for the enclosure! I'll take the plastic box and duct tape, man!

Those things run like a CHAMP, brother!!!

This project is remarkable, beginning to now. I love stuff like this...

WAY longer than a .308AR set of receivers - that's the .338 Lapua Magnum AR - and the frame set is the host for the 500 Blackout. If you think that .308AR receivers are about 30% larger than AR15 receivers - the .338LM receivers are another 30% larger than the 308 stuff.

Previously, they were Monmouth Reloading - and they kicked ass at what they did. They still do kick ass - they just offer more now, with the addition of hard parts as well as reloading supplies. They're a damn great company, brother.

I'M CRYIN' over here now...

WHOA! Those are usually two completely different platforms and lowers, right there. Glock mags are, well, Glock mags. Colt mags are almost identical to the 32-round UZI mags. It's not the upper that's probably giving you the issues - it's whatever is going on with your lower setup. Pics, please.

No worries - just trying to see if there is something out there to determine if you have a PSA Boat Anchor (Gen 1) or something you can work with and get to run, with some work (Gen 2)...

He called them out singularly, but of course, you pluralized them again...

That sounds exactly like DPMS High and Low profile upper dimensions - but that was never determined for any PSA rifles. Please cite your source for that, as a determination, on PSA rifles in original pattern, versus PSA Gen 2... Thank you, in advance...

500 Blackout. Gives me wood. Get ready for it, world - I've hinted to you that this was coming...

Brace yourself for next Tuesday night, brother... this poop is happening...

If we gang up, it becomes reality...

^^^ What he said...

Let me know when everything is in, for these things, and we can have a build party at DNP's place... @DNP Sorry to volunteer you, brother... I'll bring all the tools, and we can get these things together. I need another road trip over there anyway. Because.

The nitrided one is in stock right now, at a SMOKIN' PRICE! https://www.armorally.com/shop/toolcraft-6-5-creedmoor-bolt-carrier-group-black-nitride/ Arm or Ally used to be a different name - they changed the name to Arm or Ally when they started branching out into hard parts. I'd shopped with them before the change, when they were primarily reloading supplies, and they are SOLID. Great company. Don't hesitate to do business with them - they are very good.

Let me know how your 140s do through it - are you going to drill the gas port first? Reason I ask is - if you don't, and your 140s DO work, something is terribly wrong with my own 140 load...