06-27-2022, 06:01 AM
It is the shoulder. What Klem speaks of when it is the bullet being too long, you'll get scratches on the bullet ogive from the lands.
But for an empty case it is the shoulder.
You don't say if this is a fired/resized case or not.
If you have fired cases from the CZ but not re-sized yet, use a hornady case gauge to measure the shoulder datum length of 4-5 of them, they will be at or a couple thou below the shoulder length allowable in the CZ case. This case/shoulder datum issue will be different for the one chamber as opposed to any others you own, they are different because each barrel is unique and was cut on its own at the mfr.
If the shoulder lengths differ too far between the 2 rifles you will either need to have two sets of brass or re-size shoulders to fit the tighter one so they fit in both. I had a couple barrels (one at a time) where they stretched the brass too long compared to my other rifles so it would have needed its own brass... which I don't really like, so I got rid of those barrels, only have barrels where the chambers are close enough I can resize one for all. But that's just how I do it, most guys on here seem to separate their brass and resize for each chamber. Course that also takes 2 settings of the resizing die... anyway, check the shoulder lengths. For a bolt gun the resize should bump shoulders back 0.003-0.004 -- some guys only bump back 0.002 but my dies I seem to need a bit more room so all will fit ok.
But for an empty case it is the shoulder.
You don't say if this is a fired/resized case or not.
If you have fired cases from the CZ but not re-sized yet, use a hornady case gauge to measure the shoulder datum length of 4-5 of them, they will be at or a couple thou below the shoulder length allowable in the CZ case. This case/shoulder datum issue will be different for the one chamber as opposed to any others you own, they are different because each barrel is unique and was cut on its own at the mfr.
If the shoulder lengths differ too far between the 2 rifles you will either need to have two sets of brass or re-size shoulders to fit the tighter one so they fit in both. I had a couple barrels (one at a time) where they stretched the brass too long compared to my other rifles so it would have needed its own brass... which I don't really like, so I got rid of those barrels, only have barrels where the chambers are close enough I can resize one for all. But that's just how I do it, most guys on here seem to separate their brass and resize for each chamber. Course that also takes 2 settings of the resizing die... anyway, check the shoulder lengths. For a bolt gun the resize should bump shoulders back 0.003-0.004 -- some guys only bump back 0.002 but my dies I seem to need a bit more room so all will fit ok.
"Down the floor, out the door, Go Brandon Go!!!!!"