First build...possibly complex issue

kazuaki · August 15, 2015

Yeah, I've done about 10 AR-15 80% lowers and all were great. This Juggernaut 308 just wasn't...

Edited August 15, 2015 by kazuaki

suzukiray · August 16, 2015

Kaz, if you have no plans yet, a bunch of us are going to Hodge Road, off the 15 on the Saturday of Labor Day weekend. That is 3 weeks from today. We are planning on being there around 10 am. It is a good open shooting area if you've never been. One of the guys has a clay thrower that mounts to the trailer hitch on his truck if you have shotguns too. There wer 13 of us the last time & over 50 different noise makers between all of us. Sorry for the thread jack.

Ray.

kazuaki · August 17, 2015

So, the range trip went well. I shot about 20 rounds of 147gr ammo, cleaning after every 5 rounds as a quick break-in. I then shot a bunch of Federal Gold Medal and some of the Eagle Eye that gave me issues before. I'm happy to report there were no malfunctions and no pierced primers.

I think the rifle has great accuracy potential, but I need a lot of practice/training to become consistent. My best group is below. As you can see from the two sets of measurements, I had a great group going through 4 shots (0.56 MOA), then I pulled the 5th shot and it opened up to 1.07 MOA. Like I said, the rifle shows potential, but I need some work. BTW, I was shooting from a bipod with a rear bag on a wooden bench.

Thanks to all for the help this far!

DNP · August 17, 2015

Good news. I don't know how much help anyone was. We mostly watched you walk your way through it. Looks like she's working out.

survivalshop · August 17, 2015

shepp · August 17, 2015

Good to hear!

kazuaki · August 31, 2015

So, I picked up a Black Hole Weaponry 20" barrel (polygonal rifling) during the 20% off sale they are having. I put that in and took a trip to the range today. This barrel seems to be a real shooter. Here's my best 5 shot group of the day. This was done at 100 yards with Federal Gold Medal Match 175gr factory ammo.

Matt.Cross · August 31, 2015

So, I picked up a Black Hole Weaponry 20" barrel (polygonal rifling) during the 20% off sale they are having. I put that in and took a trip to the range today. This barrel seems to be a real shooter. Here's my best 5 shot group of the day. This was done at 100 yards with Federal Gold Medal Match 175gr factory ammo.

That's some good shootin'! Well done.

DiggerDave · December 18, 2021

On 8/4/2015 at 4:51 AM, survivalshop said:

The primer piecing is probably the ammo , if its the only Brand doing it .You keep saying Eagle Eye , is it American Eagle ?

Hard to tell with the 80% Lowers , There are no MilSpecs on a 308AR like an AR15/16/M4 , Manufacturers make their own up sometimes & can cause all kinds of problems . We have seen a lot of it here with 100% Receivers.

Your Buffer hitting the Retainer is going to break it eventually . Does your BCG when locked in the Barrel extension , push the Buffer back into the Lower Receiver Extension when closing the Upper onto the Lower Receiver ? If it doesn't its not to spec's , As said, the Buffer should not touch the Retaining Pin when in operation , with the BCG in locked breach position , the BCG can not go any more forward , so if it can't go forward any more & when closing the Upper onto the Lower , the BCG pushes the Buffer a little off the Buffer Retainer , to keep it from hitting it when the action is cycling . The only time the Buffer should touch that Retaining Pin is when you disassemble or Shotgun the Receivers , its just to retain the Buffer upon disassembly .

Has this rifle had the Head Space Checked ?

My exact thought too. Bet it's short.

98Z5V · December 18, 2021

1 hour ago, DiggerDave said:

My exact thought too. Bet it's short.

6 years on the last response in this thread, Dave. Go post an intro. :thumbup:

Here's where it's at:

https://forum.308ar.com/forum/22-introductions/

Armed Eye Doc · December 18, 2021

1 hour ago, DiggerDave said:

My exact thought too. Bet it's short.

Welcome to the forum.

1 minute ago, 98Z5V said:

6 years on the last response in this thread, Dave. Go post an intro.

Here's where it's at:

https://forum.308ar.com/forum/22-introductions/

You beat me to it.

98Z5V · December 18, 2021

2 minutes ago, Armed Eye Doc said:

Welcome to the forum.

You beat me to it.

I'm quick like that, on the Necro-Dudes... :bat:

DiggerDave · December 18, 2021

48 minutes ago, 98Z5V said:

6 years on the last response in this thread, Dave. Go post an intro.

Here's where it's at:

https://forum.308ar.com/forum/22-introductions/

43 minutes ago, 98Z5V said:

I'm quick like that, on the Necro-Dudes...

I thought the forum sign-up was slow but it didn't take 6 years. But enjoyed reading the thread and now the welcome.See ya' around. In real time. Thanks for the link, too.

DD

98Z5V · December 18, 2021

4 minutes ago, DiggerDave said:

I thought the forum sign-up was slow but it didn't take 6 years. But enjoyed reading the thread and now the welcome.See ya' around. In real time. Thanks for the link, too.

DD

Welcome aboard, then. :thumbup: Go rip that Intro up, man.