Ongoing issues....extraction/ejection?

[CINDERS]

BIO has it right the S/A's are but a faded memory that I seriously doubt will ever be in the hands of legal shooters again, thanks to JWH who acted unconstitutionally removing them from us, what a maggot...........

Information

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[bigduke6]

Don't want to state the obvious but did it head space ok? only ask as the pic in post #5 looks like an unfinished chamber, hard to tell in pics etc but would say thats certainly gripping the case.

[ArtioZen]

As previously said - not yet finished or checked by gunsmith type resources. The chamber could be smoother and uniform, the extractor should be reviewed, switch for correctly set up / selected spare. The springs can be checked but are countering the gas settings, low spring pressures, low gas (large port) as it does not seem to have problems chambering a round). PPE up and test fire studying the whole cycle from single mag feeds - 3 in the mag, change the cover, or cover off for this as an early option, separate chamber / extractor issues from eject / gas pressures - there is a lot of brass kissing all over the action - I think you have had several "strong" stove pipe incidents looking at the upper receiver ejector port edge. High speed cameras are a lot of fun My sons know students in the AV labs and classes that would love a "real world" job to do..my rifles extract with low gas but need the mid openings to eject and reload from the last 3 rounds (4,5,6 depending on the ammo). I also use the urethane bolt carrier buffers - not a purist thing, but "boingier" than a hammer on an anvil.

[82Trooper]

OK, a careful chamber polish it is then. I do have a Dremel tool with the flexible bit, so it should work. I will work it s directed, with some light oil to assist. I will then reinstall the original dust cover and go to the range (hopefully this weekend) and report back. The recoil springs are properly oriented.
As always, thanks for the thoughtful advice to assist me in my quest to have a smooth runnning L1A1....
Mike

[mrclark303]

OK, a careful chamber polish it is then. I do have a Dremel tool with the flexible bit, so it should work. I will work it s directed, with some light oil to assist. I will then reinstall the original dust cover and go to the range (hopefully this weekend) and report back. The recoil springs are properly oriented.
As always, thanks for the thoughtful advice to assist me in my quest to have a smooth runnning L1A1....
Mike

Slowly, slowly catchy monkey Mike....

The chamber doesn't need to be mirror finished, just reduce the resistance.

Good luck and finger's crossed for a result

[CINDERS]

Thats word of the week l1a1 breakdown I have never heard "Boingier" before, that is a crack up, bit like I just put new tyres on my wife's Commodore for better "gription"

[ArtioZen]

Cinders, lets have Gription and Boingier as new entries for the Real World Engineer's Dictionary. I would prefer to be either useful or funny - but rarely both

Cheers!

[CINDERS]

I agree l1a1

I was talking to a mate over a few Gentlemen Jacks & coke and could not think of a word to explain the grip new tyres would have in the wet (Its winter here) so came up with that, he nearly choked on his drink having never heard that word before neither had I till I said it we both LOAO..........

[82Trooper]

OK...so how does it look?
Before and after my polishing attempt....

[bigduke6]

Certainly looks better...... personally I'd knock a few drill rounds up and see if everything is as it should be before a range trip.