Empty case necks dented?

[Kevinohio]

I resently just got my at 15 built.and it shoots ok with no jams or nothing.but I noticed in the empty steel case the the neck was dented.i was shooting the wolf 100 grain classic ammo.is this anything to be concerned about.

[BCHunter]

Nothing to be concerned about, two remedies put a piece of velcro on the brass deflector, or dissamble the bolt and cut a couple coils off the ejector spring.

And since wolf classic isn't reloadable casings, even less of an issue.

[Kevinohio]

So it won’t harm my reciever doing this?im I’m new to this.whats brass catcher location? Do you have pictures as to where to put the Velcro at.

[A5BLASTER]

So it won’t harm my reciever doing this?im I’m new to this.whats brass catcher location? Do you have pictures as to where to put the Velcro at.

The brass deflector is that lil nipple that sticks out off the upper right behind the ejection port.

Unless your intending too load for the rifle I wouldn't worrie about it.

If your going too reload brass cases fired from the rifle. Best thing too do is Google the ejector spring mod and get someone to help you who is knowledgeable about tearing down the bolt.

Cutting the ejector spring down a few coils will remove the dented case mouths. Make sure your not over/underhanded before doing this. Spent cases should be in the 3:30 area and the bolt should lock back on the last round.

Go slow and ask lots of questions, lots of YouTube videos too help you understand and learn how too do anything to a ar15 rifle.

[rabiddawg]

Your rifle is defective. I will give you $3.50 for it.

[Klem]

So it won’t harm my reciever doing this?.

No, but if you paint the receiver with Duracoat or rattle-can it will eventually wear the paint off where it impacts. It will be a very small mark so nothing to be overly worried about. If you don't reload then it's a non-issue.

[A5BLASTER]

Your rifle is defective. I will give you $3.50 for it.

Dude I almost choked on my tobacco I lol so hard lmao.

[Kevinohio]

Thanks everyone for the help

[Former Cav]

Your rifle is defective. I will give you $3.50 for it.

$4.00 I need something to mess with.

[Chance-dg]

Klem or anyone.....I am using a group buy bolt and 16" GB Barrel...…..ejecting violently....small dent on each case but the Fed. case dents are cracked slightly...Hornady cases are just slightly bent at the mouth of course. The ejector pin is so tight I can't remove it with a bench block and correct roll pin punch???? I just sent a pic of a .893 6 shot group to the GB Master Monster with the Fed 90g. TNT factory rounds so shooting in nicely. But the Fed cases are ruined for reloading and the Hornady cases are suspect till I resize and trim them. I have spare plungers and springs BUT the roll pin on one end looks to be chipped or broken during installation and may be the reason this pin is stuck in the bolt. HELP Please

[A5BLASTER]

Klem or anyone.....I am using a group buy bolt and 16" GB Barrel...?..ejecting violently....small dent on each case but the Fed. case dents are cracked slightly...Hornady cases are just slightly bent at the mouth of course. The ejector pin is so tight I can't remove it with a bench block and correct roll pin punch???? I just sent a pic of a .893 6 shot group to the GB Master Monster with the Fed 90g. TNT factory rounds so shooting in nicely. But the Fed cases are ruined for reloading and the Hornady cases are suspect till I resize and trim them. I have spare plungers and springs BUT the roll pin on one end looks to be chipped or broken during installation and may be the reason this pin is stuck in the bolt. HELP Please

Your over gassed.

[Chance-dg]

That's what my wife says too....I am using a superlative arms adj. gas block with it tuned to just lock the bolt and carrier back on an empty mag??? OH adjusted for Hornady ELD M 123g did not adjust for the 90g load.....uggg it is still denting the Hornady case mouths slightly.....is it worth shortening the plunger/ejector spring???

[Klem]

That's what my wife says too....I am using a superlative arms adj. gas block with it tuned to just lock the bolt and carrier back on an empty mag??? OH adjusted for Hornady ELD M 123g did not adjust for the 90g load.....uggg it is still denting the Hornady case mouths slightly.....is it worth shortening the plunger/ejector spring???

Yes.

Sounds like you have tamed the gas to just right, but you now need to fix the cases impacting the deflector.

What equipment do you have to get that stuck pin out?

[Chance-dg]

Nothing really...….small bench block, split pin starter set and a tap hammer...…..a small box to mail it to someone and the ability to compensate them for their efforts....lol I have spent a LOT of time and fitting (and Money) to build this little MONSTER to my specs and thought I could drive the pin out and shorten the spring with little effort.....uggggggg the build parts list reads like a Christmas list (for the most part) and is starting to shoot in nicely when I do my part so mostly happy so far till this issue.

I have never had this issue with any of my 5.56 builds but they don't have the range of bullet weights to handle with the fast twist barrels I use.

[Bigs28]

I have a superlative arms gas block as well. It sounds like you got yours figured out but i could not use the bleed off feature. Was still way overgassed and had to switch to choking the gas down. That works perfect.

[Chance-dg]

Klem...….several months ago you reiterated to me very good advise on my build,,,,,Barrel, trigger, glass and trigger time. all the rest is just icing on the cake. (My weak point is the trigger tripper).

I am running a Geissele 2 stage enhanced match trigger and a Leupold VX6 2x12 in an Aero Precision Lt Wt one piece mount. The Leupold will be off to their factory for a reticule change as the duplex is too thick for precision work. This is a hunting carbine for Montana prong horn and deer mostly and I am having the LR Varmint put in it. The upper is all BCM on an AP Gen 2 lower and LPG with BAD enhancements and a BCM SOPMOD Mod O stock.

I fired a cold barrel 6 shot group yesterday of .893 in. with a Nikon P223 scope and mounts and the 90g TNT factory load on my red neck shooting bench. Vertical stringing caused this group to be this large and was shooter induced. This GB barrel is a one hole shooter when I do my part.

[Chance-dg]

How did you choke the gas down???

[Chance-dg]

I can always open the SA gas block a bit on this hunting carbine last shot bolt open doesn't really matter

[Bigs28]

How did you choke the gas down???

When the set screw is all the way open it is max bleed off with maximum gas coming through the block. After you completely shut off the bleed off by closing the set screw then it starts to shut off the the incoming gas all together. It's no longer bleeding off and just choking off the incoming gas. If you take the block off and look inside the hole you will see it opening and closing depending on which way you turn the set screw.

[Chance-dg]

I have AP 10.5, Sig 556 14.5 and Ruger 16in. fast twist .556 pistols and SBRs for ranch guns and my trusty 1911's. The very best personal defence weapon is the one you have in your hand when SHTF......lol