280 remington case size

[DaveA37]

RCBS makes two different reloading dies sizes for the 280 Remington, one considered "small base" and the other "full length". I am advised by RCBS technical folks that the small base die is designed to size shells for the autoloaders but NOT for bolt action rifles. Apparently the chamber in the autoloaders is a bit tighter.

If the "sb" shells can fit in bolt action rifles, seems to me there needs to be some significant difference noted on the boxes it not. What's you take on this?

 

[HTDUCK]

RCBS makes two different reloading dies sizes for the 280 Remington, one considered "small base" and the other "full length". I am advised by RCBS technical folks that the small base die is designed to size shells for the autoloaders but NOT for bolt action rifles. Apparently the chamber in the autoloaders is a bit tighter.

If the "sb" shells can fit in bolt action rifles, seems to me there needs to be some significant difference noted on the boxes it not. What's you take on this?

As I understand it the autoloading rifles have looser or more generous chambers. As a result brass fired in these may expand more than brass fired in a bolt gun. The result is brass that needs be worked further to get back to SAAMI specs..

I own two SB die sets.
223 and 280.

Howard

 

[jimbires]

the small base is also a full length sizing die . the SB die will resize the brass case a little smaller so the ammo can reliably feed in auto's or pump action's . not that these are smaller chambered , but these do not allow you to push the bolt closed, and turn the bolt down by hand . if you get one a little tight in an auto it will jamb .a little tight in a pump and you really have to slam the pump closed . if you are loading for a bolt action you should be fine using the standard full length die , plus you will not be sizing as much making the brass last a little longer . Jim.