Thread: 223 tight chambering?

Good spotting @blip. All the resized cases have this on them when I checked closer. I've also coloured the end of one of the reloads and it hasn't got any marks around the neck after being chambered.



One thing noted is a decent rub mark about 8mm up from the base of the case. Maybe the other markings are a bit of a red herring and the tightness is the diameter further back.

Originally Posted by RUMPY

Good spotting @blip. All the resized cases have this on them when I checked closer. I've also coloured the end of one of the reloads and it hasn't got any marks around the neck after being chambered.

Attachment 261101

One thing noted is a decent rub mark about 8mm up from the base of the case. Maybe the other markings are a bit of a red herring and the tightness is the diameter further back.

Attachment 261103

It does look as though the shoulder has made contact with the chamber though. This can happen if the case mouth hits the end of the chamber neck which will bulge the shoulder or it just was not sized properly. Don't ask me how I know this.
GPM.

Originally Posted by grandpamac

It does look as though the shoulder has made contact with the chamber though. This can happen if the case mouth hits the end of the chamber neck which will bulge the shoulder or it just was not sized properly. Don't ask me how I know this.
GPM.

Yes possibly GPM,
All the brass chambered in Micky Ducks rifle and I could get them in mine with a hard push on the bolt handle. After Micky adjusted the die down half a flyshit they chambered in my rifle just fine.
I have a Weatherby vanguard, not sure if they are known to be tighter than other chambers. I thought standards were made so things were made the same.

Originally Posted by RUMPY

Yes possibly GPM,
All the brass chambered in Micky Ducks rifle and I could get them in mine with a hard push on the bolt handle. After Micky adjusted the die down half a flyshit they chambered in my rifle just fine.
I have a Weatherby vanguard, not sure if they are known to be tighter than other chambers. I thought standards were made so things were made the same.

That's why you should Full Length resize any brass you use of unknown origin so they are within SAAMI Cartridge specs. and then probably try chambering in the intended rifle before carrying on with reloading process. Not all reamers of the same caliber are the same, even from the same manufacturer. They are all made to fall within manufacturing tolerance specs., so variation can and does occur with chambers. Just my 2c.