308 win problem

did the once fired come from that gun?

did you check trim length?

 

If I'm deciphering that correctly

You have some 7.62 NATO ammo and are shooting it in your 308 bolt gun, but the fired cases will not eject. The ammo fires fine, but the cases will not eject.

You have some commercial 308 brass. You resize the commercial brass, prime it, pull the bullets on the NATO ammo, pour the powder charge from the NATO ammo into the primed commercial brass and seat the NATO bullet.

Now, when loading them into your 308 bolt gun the round will chamber, the bolt will close, but the bolt handle will not go down?

Two things come to mind.

The commercial brass is once fired. Possibly the resizing die you used to resize this brass was not set up correctly, and therefore did not completely resize the case, and this prevents it from completely entering the chamber, and with it not all the way in, the bolt won't close.

The bullet could be seated out too far. When the round is chambered the bullet is pushing against the rifling, which could also prevent the round from completely entering the chamber, and again, the bolt won't close.

 

roll crimp to agressive and not allowing it to enter the chamber fully?

 

as a side question.. do you have a mic or neck gauge to check the case dimensions?

any damage at the shoulder?

 

Was the once fired brass fired from a semi-auto rifle? The should could have shifted and won't chamber into a tighter bolt chamber.

 

speaking of picky chambers.. I was given a bunch of old 30-30 brass, many times fired.. etc. some were primed empties. i wanted to deprime before working on them.. none would chamber in my savage 340 bolt gun.. most WOULD chamber in my marlin 336 less picky chamber.. etc...

 

just to be clear.. you did no crimping at all?

 

I know that some of the 700 chambers are pretty tight for tactical use and accuracy. If it was fired in a M-14, for example, it could have elongated and will never be able to chamber correctly in your gun.

 

I bet the sizing die is not installed correctly. I take it you are full length sizing? Well you have to be if that brass was not shot out of your rifle. Ok take your full length sizing die out and follow the instructions for installation to the TEE. Exactly as it says and try again. When this happens to me my sizing die lock has come out of adjustment and i must restart. Good idea to do so anyway. Your problem sounds all to common to me and I believe this is what you need to do. Your brass neck is not positioned just right. A case gage is also a great tool for this kind of stuff. Buy yourself one and check each and every case before you proceed to charging the case.


One more thing. YOu may have a short chamber in that rifle. Maybe just maybe but probably not. Anyway if you do you can order a special full length sizing die from lee to the short end of the tolerance. I have a rilfe like that and i special ordered one from lee. Was not expensive and only took about 2 weeks. Comtact Lee dierctly and speak to someone over there if all of the above does not help.

 

ditto on the case gauge.. very usefull....

 

Here is the senero. YOu have the sizing die set with the lock ring. YOu use it here and there and years go buy and you simply run the die into the press untill it hits the lock ring. Well eventually you will loose your adjustment. You must install that die to specification and relock the ring each and every time you use it. Failure to do so is what causes these types of problems. I bet money on it. I have seen it too many times.

 

Try this.

Size a piece of that brass and see if it will chamber and the bolt lock.

Not a loaded cartridge. Just a resized piece of brass.