7MM Rem Mag Brass ? Problem

[xoddah]

I have a Savage 110 7MM Rem Mag and have reloaded for this caliber about 4 years

I bought some new Norma Brass loaded it lite to fire form new brass

ran the once fired brass through a loose adjusted die, cleaned properly, measured
added a bullet to get seating die set, inserted into the rifle chamber to double / triple check
before primer and powder and the bolt will not close

measured, "everything" adjusted the die up, down, used 3 different dies, shoulder bumped, neck sized only
different bullets, triple checked the chamber length

I did this with 25 cases, Norma. fired once, same rifle not a single one will load with really push hard on the bolt
... can't do that... smoked 3 of the cases, shows it is solid on the shoulder. ran them through a Lee collet die
adjusted, a micro-meter at a time. no difference...

went to all the sources I know of, manuals, web sites, Larry Willis and I keep being told "Die adjustment"

I have more new Norma brass, out of the box, fits great, insert a bullet, fits great BUT before I screw up anymore expensive new brass I am looking for ideas, Help

add to above.. the first firing light load and cases ejected perfectly I measured every single one and recorded case length, before and after firing... to see how much they would grow and ran over a chronograph
everything looked excellent I was pleased. again, ran through a F/L die set loose and NO GO

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[orygun]

I've had this problem with one cartridge and the one set of dies that I've used to load them. Seems as though the case is getting "squeezed" and made longer before I am able to do a neck size. The one set of dies that gave me this problem required me to grind some metal off of the base of the die so I could run the die farther down the case.

Sounds like you need to set the shoulder back more than you are so the bolt will close.

 

[xoddah]

I remember reading about shortening dies a little, I have also on other calibers added a .010 feeler gage between the shell holder and bottom of the cartridge &mm is a rimmed case and indexes off of the top of the rim not bottom of the case
...correct me if I am wrong ...

The only thing I have done different is
New Norma Brass,
fired once,
Ran through FL die, after first firing
and it will not load
I actually adjusted the die-s way to tight just to see if I could move the shoulder back, it just started crushing the case and jammed in the die ... way fun to get out and... did not work obviously

I have NEVER had a problem like this before remington and winchester brass