98Z5V

FWIW, in continuation with the thread now, I didn't have one single functional issue with the Lancer L5AWM 20-rd mag, the Gen 3 5.56 PMag 20, or the slightly tweaked Gen 2 5.56 PMag 20s. All fed reliably, functioned the rifle, and locked back on the last round - with my loads (now) at 2.255" COL. I didn't try the Lancer 30, based on what I saw at home. For the record, I didn't try any 30-round mags...

Okay, riddle me this one - 300BLK with a big fata$s 150gr FMJ round in there, and I don't have to fuk with the feedlips on the standard AR15 magazine to get all off them to work perfectly. Perfectly. Never had an issue with a .308" diameter bullet... Now, why, all of the sudden, are those same magazines gonna have an issue with a .257" bullet, Mike? Short answer is, they aren't gonna have a feedlip problem in those magazines. You're trying to relate what happened with you, with 6.8SPC and AR15 magazines. Follower change, can't load to full capacity because the case is larger in diameter, etc. That shiit ain't the same here, with this cartridge, Mike. You are literally comparing Apples and Hammers here - NOT Apples and Oranges. They're not a little bit different - they're on different planets, man. I'm trying to tell you that, and you keep pushing what you think you know. It's different, whether you want to understand it or not, man.

It's not insite, brother - it's comparing apples to hammers, on your part. Different cases, completely. I'm running a 5.56 case, you're running a big fata$s case that needs to have the magazines modified in order to run it in the AR15 platform... Apples to Hammers...

Ammo performance test gettin' ready to go down on steel, as well as the magazine test on these handloads. 5.56 gun is the Mk12, 18" barrel vs. the 25-45 with 18" barrel. Should be pretty similar, and only show how hard the rounds hit. Back in several hours with some video, men. I hope I don't shoot my GoPro...

Not the case at all, with this round. The parent case is .223 Rem, the projectile isn't even as large as 300BLK, which seats 30 in a 30, and 20 in a 20, just fine. Your issues with 6.8 SPC and AR15 mags ain't the same as the issues with my loading length, and what these magazines will hold... 6.8SPC vs. .223 Rem:

That Vortex isn't gonna give you any issues, that's for sure - but I'd be interested, now, to see if you get some weird groups. It will be from velocity differences from the ammo, with the projectiles seated to various depths, after chambering.

Yes, gotta be. That's a short bullet. Might be that the hollow point is so large, that IT is what's rubbing the inside of the magazine, too. I have a feeling I'm gonna be duplicating all my load testing at 2.250" COL...

Makes me happy to see another .338 Fed going together!

They'll shoot, and I don't think they're gonna cause you pressure issues that would harm you or the gun - I'd just shoot 'em all up. I wouldn't use them to zero my scope, though. Try them out for accuracy and see if they shoot tight groups, or if they're all over the paper. THAT would be a decent test, and interesting results.

Interesting, interesting, interesting... So, in the load testing last weekend, I only had 5 rounds in a mag at a time... So, I just finished loading another 100 rounds of 90gr SGK BTHP, 23.1gr RL-7, once fired PMC Bronze cases. Set them all at 2.260" again. Grabbed up my Lancer L5AWM FDE 30-round mag, and proceeded to load it up full. No go. With about half a mag full, it got tight, and I kept shoving rounds in there anyway, until I got to 30. They were tight in there. So, I strip them out, one by one. With about half a mag left to go, the follower stopped and I took the mag apart to get the rest of them out - 2 were stuck in the middle, and I smacked the mag body on the counter to get them out. I grabbed out ANOTHER of the same mag, same results... Fuk. Alright, I'm thinking... I effed up this load, and they're too long... Measure them ALL - either 2.260" or 2.259". Conclusion? Lancer L5AWM might be 2.272" at the mouth of the mag, but that fucker tapers down in the middle. Solution? Resize all the loaded ammo to 2.255". Done. Now, I go to load up that Lancer 30-round mag again - it was getting tight in the middle again, but it was easier to load. I stripped them all out, and they all came out, but somewhere around the middle of the mag, I had to give the mag a smack to get that next round up to the feedlips and strip it out. It was only a couple times. That's a big no-go in my book, if they're not gonna feed reliably. Solution? Downsize the ammo again? Maybe. I need to seat it all shorter, until all the rounds feed, and THEN duplicate the load testing again, at shorter seated lengths. Fuk me... Or, try a Lancer 20-rounder. Okay, I did that, and the rounds are kinda tight in there, but they all stripped out okay, even loaded now at 2.255" COL. I'll shoot that mag and see if rifle recoil is enough to keep bouncing them all up to the top... Hey, there's a Gen 3 PMag 20 - load it all up fine, they all strip out easily - like normal. Testing that one today, too. Oh, there's 2 x Gen 2 PMag 20 - let's load 'em. Okay, issues in one, but not the other... Hmmm... Look at them closely, and see what it is - bumps on the sides of the mags, at the top, and the little protrusion that separates rounds at the top of the mag. "Massage" them a little with the knife, and they load and strip just fine. So, interesting development with the .257 ammo loaded up to 2.260" now 2.255" here, and magazine choice... I'll figure all this out, and report back with range results, and magazine pictures showing what's up.

That's the Power-Shok hunting ammo. There's a whole bunch online about the crimping of that stuff.

For that, nothing, really. Pay close attention to those rounds when live-firing. Check all the brass for abnormal pressure signs. I don't think that amount of setback is enough to cause a serious situation, but based on the varience, your shot groups might suck with it. Maybe it's a bad batch, or maybe they never crimp that brand. I couldn't find any Remington blue box ammo - got a pic of the ammo box?

Dug it up in a custom search -

They're only addressing the SB brace in that letter, which does come with a strap, brother. The example they're NOW giving of their "redesigning" definition is "You remove the strap, then you redesigned it, You alter the length on the receiver extension so it's too long to strap to your arm, then you redesigned it..." They are just pointing out their new definition with examples, after failing miserably in their last ruling. Several lawyers were fighting them, pointing out that how a person uses an item does not constitute a "redesign" since the configured firearm has not been altered a single bit.

You did FANTASTIC on that sale!!!

Bullet setback, that's called. Not enough crimp on the casing after seating the bullet. Doesn't usually happen in bolt guns, but severe bullet setback can be disastrous in a semi. The numbers above aren't bad. Not saying it's good, but it's not severe. Severe, on a semi, is when that bullet gets shoved all the way back in the case. Pressures would be higher in rounds that setback, over rounds that don't move in the case. I don't think there's a calculation or way to determine how much higher, without physically measuring chamber pressure, though.

I was trying to compensate for two extremely lucky shots! So I kept eye contact with you after hearing that steel ring - so you'd think I MEANT that shiit!...

I did some shiit like this to Matt two shoots in a row now. Fall Shoot, Day 2. I wake up, grab the 308 bolt gun, sling up standing - and one-round pop the steel at 400. Set the gun down and walk away... Spring Shoot, Day 1. Setup all the steel targets, and we've got a steel at 50 to 63 yards. I say it was 50 yards, and some smartass with a laser rangefinder says it was 63 yards. I think the rangefinder was off... Everybody is shooting pistols at the short steel, warming up, having a good time. I walked out to the longer steel... one hand offhand shot, standing, XD45, BANG! Ting... Holster the pistol and walk away... Both were Lucky-As-Fuk shots, but I couldn't let the psychological effect go to waste, so... hit the shot and walk away...

HAAAAAAAAAAAAAAAAAHAHAHAAAAAAAAAAAAAAAAAAHAHAHAHAHAHAHAAAAAAAAHAHAHAHAHAHA!!!!!!!! It's not finished yet, but it damn sure will by by the FallShoot!

Dude, I will TEAR IT UP with that Cricket!!!.......

OP, you are selling a perfectly good Armalite AR-10, and asking about this thing?... I don't get it...

GO for it! I found this on the webpage for the kit - under reviews! "The parts kit is awful I bought this kit a few weeks ago with the jigs and just had a chance to complete the lower receiver. The spring for the rear take down pin was to small and the spring for the safety switch had too much tension making the safety next to impossible to move. Overall the parts kit for the lower receiver is not good at all. I would say the quality of everything else appears to be good. On a side note, the jig needed some hammer manipulation to get the pins to align with the take down holes in the lower receiver. It appeared to me that there was a stacking tolerance issue or poor quality control. Not sure if I would buy again, what it'll cost to get a quality parts kit is going to push me in the range of buying a complete gun instead." They tell you right up front that they're overwhelmed with orders, and typical shipping takes 10~15 days... That means they don't have to start making excuses for not shipping your shiit for at least two weeks... BS in today's online retail world, man. Risk it if you want... But don't come in here bitching when you have a ton of issues...

Spent cases, or unfired ammo?

I think there's some confusion going on in this thread on "Extractor vs. Ejector." I think this rifle might have a broken ejector or ejector spring. The rounds are being pulled out of the hot chamber - so the extractor is working. They're not getting thrown out of the ejection port, so something is stopping the ejection of the spent case.

I'm liking it already, brother!!!