98Z5V

I love it...

No. It's not gonna work. Cancel one or the other. Buy upper and lower receivers from the same company to avoid major headaches down the road. Best bet altogether is to avoid PSA PA-10s, and that's no joke. Too much "proprietary" going on there. Stick with something that at least adheres to either the "real" DPMS LR-308 pattern, or the Armalite AR-10 pattern. Aero Precision sticks to the DPMS LR-308 pattern, perfectly, in the DPMS-High Rail pattern. Nobody can beat them, for what they do for this Large-Frame AR platform.n it' Nothing about this platform, in it's 3 major configurations, is like building or running AR-15s. Too many differences amongst the patterns. You're finding that out now.

By the way - this is not an "AR-10" - the Armalite AR-10 platform is vastly different, and won't work with much of the parts you're describing. This is information for you, just so you know. This is a ".308AR" that you're working on, but it's not an AR-10. You'd see that right away, if you tried to pin a real AR-10 upper to your PSA PA-10 lower. These platform differences are why this board exists in the first place. We've been around for a minute, and might know what we're talking about.

That's just for rail-height - the only reason they give that information. To select a rail. That doesn't mean it'll pin to your lower. Here's my story with PSA PA-10s. I can pin an Aero M5 upper to a DPMS LR-308 lower, and vice versa. I worked on a PSA PA-10 upper for someone - complete upper - and it would NOT pin to my Aero M5 lower, to test fire. So I tried it on my DPMS LR-308 lower. It would NOT pin to that one, either. I had to take the whole PSA upper apart, and transplant all it's guts into an Aero M5 upper, just to test fire it, and make sure it was good to go. That's my history with the two platforms. When PSA says they're "proprietary" - they're not kidding. But, we'll see how this works out. I'll await your test-fitting.

Those two major components of the gun system might have great difficulty working together. Let's see what happens. Welcome aboard.

It's finally alive, and shipping. Well, this is late - it was shipping on March 3rd, and it's sold out everywhere right now - all the parts, pieces, components. We'd expect that, with the environment that we're now in. If you can find one - it's badass. https://www.aeroprecisionusa.com/epc

Mark LaRue is... https://www.larue.com/page/larue-tactical-6-5-grendel-fde-rifle-k/ @Magwa doesn't do too bad for himself, either, hunting elk. It's well documented here in the hunting archives.

Why do you think I have so many calibers? I'll get lucky with something, when I pick it up...

You're talking external ballistics, on an internal ballistics situation. External ballistics don't matter, with what's going on inside the gun. Environmental is all that matters on external ballistics. That's what I do - I'm constrained to seating depth, based on magazine internal depth/length - that sets my max loading length, no matter where the rifling lands fall. On some, I measure mag length, determine that optimal powder/load node, and I shorten up the seating depth for better accuracy. It works. Check this book out: https://store.appliedballisticsllc.com/Applied_Ballistics_For_Long_Range_Shooting_3rd_p/0006.htm

Definitely tell him to fuk himself...

They're all gone - just like reloading supplies. It's fucking ridiculous out there.

^^^ Solid advice - always check the hyperlinks.

I need to get you hooked UP! I'm on my ass on that side of it, brother. I will take care of this. My PP-fuking has turned me upside down, for "normal operations..."

Pressure. Speeds and projectile weights (the combination) primarily. The faster something shoots, the faster it's gonna eat up a barrel. There are some crazy loads out there in different calibers that are burning up 4k feet per second. Think Varmint guns, and the like. Those light little projectiles, just screamin' downrange - those barrels don't last long, until they're shot out. So, you hit on that, too - that (above) would obviously be an aggressive powder charge/load. Indeed. Light pills, hauling ass. The same is true with heavy projectiles, when you get those moving fast - that'll wear out a barrel quick, too. This is what we go for in long distance... My .300 Win Mag barrel won't last a long life, that's for certain. I worked the hell out of that load, and I've got 225gr Hornady ELD-Ms with a G1 drag of .777 moving at 2932fps. That load HAULS THE DAMN MAIL... That load gets me to the mile target. I know it'll go longer than that, too, I just need to set something up and do it. But I'll pay for it, with shorter barrel life. That's a load that's over the max suggested stuff, but all that max suggested stuff in published books is for liability - no company that produces a Load Manual wants to be responsible for some dummy blowing themselves up- so they list it conservatively. I've found that all my best precision loads are within 10% OVER the max listings in manuals. It just happens that way. I go to hit an accuracy node, until I see pressure signs before the next node. Keep track of the notes, write everything down when testing, see pressure signs, and move back down to that last accuracy node. Powder charge testing complete. After that, play with seating depth and fine tune it even more, if you're not restricted by mag length. Chrome lined steel barrels help barrel life, when things are hauling ass. That's why military M4s and M16s are steel, chrome lined. 5.56 .mil loads haul ass. 55gr M193 moves at 3250/3300fps. SS109/M855, 62gr green tip is moving close to 3100fps.

@1500VHO, glad it's running, man! The pattern for solid operation works, and works well. That combination that you have will eat any ammo that you throw at it, and that's the entire goal, the whole time. No need to thank me, though - buy me a beer sometime...

That is AWESOME NEWS, Cliff!!! Hell yeah!!!

That's some damn great news, right there, brother. That decision can be used as Stare Decisis going forward, when they try to make their own rules again - like they're attempting on pistol braces right now...

Correct - and good research. You need the 12 1/16" Armalite AR-10 Carbine gas tube. If it's out of stock at Armalite's website, call them on the phone and talk one of the humans there out of one. If they're TRULY out, then LBE Unlimited makes a gas tube that's 12 1/16", and it works just like the Armalite tube does.

Hell yeah, brother!

I'm totally shocked that this is even a Public Service Announcement here. But, these days - no questions or comments are out of the realm of reality here. It seems that Darwin left this all up to us, and left us hanging. Now, we have to answer it. In the old days, you had to learn from your mistakes, but the internet has taken that all away now. If you were a Garand owner - you only got "Garand Thumb" once. These says, it seems like people just don't learn from mistakes.

Here's the (worn on body) right side out of my ski med-bag - 2 SAM splints. Same thing out of the left side, if I had to go to that side on the hill. Doesn't matter which side of the pack that I have access to - something is there. It all comes down to how bad some skier can Sony Bono themselves. People are impressive, in what they can do to themselves. Shiit happens.

Video 2 was what he put out to explain everything in Video 1- that the Slow Kids in the class were beating him up over in the YT comments... Those that didn't understand in Vid 1 made all SORTS of comments in his YT channel over it. He made #2 to get the point across to them. My thoughts - if they didn't get it the first time, then the 2nd wasn't gonna do it for them, either...

The doc at the hospital asked him "who the hell did this to you, to get you here?" He'd never seen anything like that. If that doc had ever been in a really fucked up situation - the way he was packed and wrapped wouldn't have been surprising. Telling you guys - break a leg, sever an arm. Whatever. Pack you up and wrap you. I can set deformed, broken bones before I splint you, then "package you comfortable..." Fingers and Toes? FUK MY LIFE, I HATE that shiit. That's GROSS! I hate fingers and toes. Badly.

In a pinch - and dune accident - I've used sticks and duct tape. Tib-fib boot-top fracture. Here's what we did to get him out: We did this, from the crash site, just to get the leg stable, and get him into @DNPs Rhino - to get him back to camp. That was a pic of getting him into the truck's back seat, to get him to the hospital, once we got him back to camp. If I was packing SAM splints, 3 or 4 of them could have done that - but we had sticks and duct tape. Immobilize the joints above and below the break... Always... Here's how the doc had him wrapped up, after pin-and-screw surgery. Here's the pins and screws: Without @DNP that day, this guy would have been on a helicopter-ride, out of there. That was the ONLY way we could get to him, as fast as we did, and get him out of there and back to camp/truck... SAM splints, people. They're cheap. Much better than sticks and duct tape, too. But, do what you have to, when it arises.

SAM Splints, brother. Used for years. I packed 4 of them in my Ski Patrol bag, all the time. Packed that many in every med bag in the military time - they don't weigh shiit, and are worth their weight in gold - if needed. This just looks like a new invention of one, at a way higher price. SAM Splint: https://www.google.com/search?client=firefox-b-1-d&q=SAM+Splint The military ones are a bonus, because they're ODG. https://fieldcraftsurvival.com/sam-splint-ii/?gclid=Cj0KCQjwjPaCBhDkARIsAISZN7To5ARTdS4TK1CEnzLFGaQF_0qfRxBZfefiqslBRaVgqp_VczBWBSYaAhlNEALw_wcB