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[Fla shooter]

Rounds will not chamber !!! The bolt is stoping about 1/8"from closing I studied the cases looks like swelling right before the belt of the case ! Have not had any problems before now . 69.5 retumbo nosler brass 7mm rem out in the feild hunting now . Time to chunk the brass n start with new ones

 

[backwoods83]

People including myself will need a good bit more info if your looking for help.

 

[Fla shooter]

Do you think the brass is getting weak from to many reloads

 

[backwoods83]

I have no idea, the only info you gave is 69.5 grns of Retumbo in Nosler brass. How many firings? What rifle, factory chamber? Bullet? OAL? Have you cleaned the chamber? Or as simple as have you tried to close the bolt without a round in it?

 

[Fla shooter]

Rem 700 hart barrel it has four or five shots thru it n yes I keep it cleaned !!! I keep four or five fouling shots thru it 180 Bergers . 6 or 7 times reloaded brass

 

[SBruce]

I wondered the same thing, are you sure it's not something with the bolt?

I would assume that the sizing die would've taken care of any bulges in the cases from the previous firing.
Especially a FL die.

Sometimes neck size only dies can leave cases a tad too big and be pretty snug on closing the bolt.

Is it all the cases you have on hand, or just a few of them that are acting up??

 

[backwoods83]

I don't think your brass should be wore out, I toss brass when the primer pockets get loose or sometimes I tighten them and still use them. You could have caused a buldge in the case by pushing to hard with the seater die, or you could have you oal way off and its trying for a hard jam. To many variables for a certain answer.

 

[Fla shooter]

Just few. got a few out of the box n my pack they chamber fine ! Headed back to the house will take some measurements

 

[Fla shooter]

I have checked anything that would think it could be . coal 3.820

 

[375fan]

With what limited info you have provided, my first thought given the number of firings on the brass would be brass is getting too long for chamber, due to FL sizing die not set properly. Resize a fired case and see if it will chamber and allow you to close bolt. If it doesn't allow bolt to close then adjust die.
You mention coal, that could be problem if bullet is set too long.

 

[backwoods83]

7mm rm? 3.82"? Am I missing something, 3.82-2.495=1.325" that leaves not even the boatail in the case. 180 berger = apx 1.527"-1.542". I'm lost.

 

[Fla shooter]

I guess I should zero after putting this on

 

[Fla shooter]

With this on

 

[backwoods83]

I know all chambers are different but you may want to check the base to ogive length of all your rounds because I just measured some loaded basically identical to yours, just a different case make and powder charge, but in a saami 7mm rm chamber, I'm using the same comperator you are and I get 2.754" base to ogive and that's a .010" jam in the rifle I speak of. If yours is similar that's like a .065" jam, good reason it wouldn't want to close. Also bergers can vary in ogive length quite a bit from lot to lot, buy 500 at a time. My total oal is 3.412" btw. Only other 2 possibilities are case stretch or case head expansion on the verge of seperation, mic the belt, if its larger than .535" toss the cases or your about to have a really bad problem.