If the shoulder is not contacting the chamber, then the the bullet is. The lengths you listed. That is not likely.savage204 wrote: ↑Mon Apr 15, 2019 11:02 pmThere wasn't a lot of day light when I got home but I did shoot three factory rounds ( two Armscor and one Hornady) so I could measure the shoulders and at least get an idea. All three measured 1.080. So this tells me the case shoulders are not hitting the chamber with my sized cases measuring 1.068.bangbangping wrote: ↑Sun Apr 14, 2019 7:04 pm Measure a fired case. I'd wager it's longer than 1.068". No need to set your die down further.
So now I'm even more confused. I can borrow a standard weight carbine buffer and try that. When I get paid this week I'll order some converted LC brass as was suggested also.
I'm kinda lost at this point. I thought maybe I would pull some of the 147gr Armscore bullets and load those just to see if it made any difference.
If the shoulder is not supported, the extractor will not be able to snap over the rim. You can ease the carrier down with the charging handle and have it rest on the base of the cartridge, then force it shut with the forward assist to check it.
You can also chamber a round and recheck the base to datum, it will probably be less than 1.068”.