6 arc gasser/AR help

[TradLife406]

I put together a 6 Arc this winter and it seems the gun is cursed. Every time I take it to the range it seems to have problems. Something always goes wrong with it.

I finally had a good run with it a few months ago and was able to do load dev for it. Went home and loaded up a box of that load.

Went out today and the first shot went off. Cycled fine with a perfect 3 o clock ejection.

Next shot went click. wtf?!

Tried to eject the cartridge and the bolt was stuck bad. Had to used a screw driver to pry the bolt back enough to where I could move the charger handle.

This repeated a couple more times with only one actually firing.

I'm guessing I messed something up when I was reloading. Maybe I didn't bump the shoulders back enough?

Could this be a head space issue?

Seems to chamber ok but when I go to shoot I only get a click. No primer mark. Then the round is stuck in the chamber.

Maybe I didn't bump the shoulders back enough?

I checked the brass with a chamber/head space gauge and they seemed fine.

Haven't had this issue before.

Early on I had some handloads that wouldn't chamber but I think I fixed that issue.

Gun was freshly cleaned.


When it does work it sure is fun to shoot. Was hoping to have my kid shoot a deer with it next month.

I'd just run factory through it since I'm obviously too retarded to handload for it. Even though I have zero issues with my bolt gun, 300 black and 223 ARs.

Is it an issue with having a cheap Shaw barrel?

 

[112Savage]

If it shoots factory reliably then you likely have a sizing/brass length/ bullet seating/ chamber issue.

Shoot factory. Buy the Hornady shoulder comparator. Set the sizing die to set the shoulder back 0.003-0.005”. Seat bullets to magazine length (if they’re 100-109gr typical for 6ARC).

If that doesn’t work then it’s likely a firing pin issue.

 

[TradLife406]

If it shoots factory reliably then you likely have a sizing/brass length/ bullet seating/ chamber issue.

Shoot factory. Buy the Hornady shoulder comparator. Set the sizing die to set the shoulder back 0.003-0.005”. Seat bullets to magazine length (if they’re 100-109gr typical for 6ARC).

If that doesn’t work then it’s likely a firing pin issue.

Perfect. Kind of what I was thinking.

It runs factory great but shoots it horribly. Last box I bought I shot the entire thing into a group. It was pushing 3" at 100 for 20. 108 eldms.

It likes 108's and varget. But that's about it. Probably what I get for a barrel that was $250. I should have spent a little more and gotten a PVA or something.
But it did just a tad over an inch with 108's isn't bad for 10.

Maybe pull the bullets, pull the decapping rod and bump the shoulders back a tad more?

Sounds like fresh brass and go from there.

Then set that stuff aside for a winter project

 

[112Savage]

Get a shoulder comparator and that may answer questions.