Originally Posted by SU35
Yes,

Quote
6XC Brass -- Ready to Shoot with a .308-style Rim
New 6XC brass, ready to shoot out of the box, is available from Superior Shooting Systems. You don't have to worry about forming the cases out of .22-250 brass any more. The rim thickness is that of a 308 case (.049) so you won't need a different shellholder (.22-250 is .044" rim thickness).

The web specified for this case is similar to the .338 Lapua. This gives a much stronger back end as well as more uniform powder ignition. A Neco gauge on the web showed right at .002" runout on the body wall. The brass is much more affordable than Lapua or Norma brass. Prices for the Third Batch of 6XC brass are now $32 per hundred and $30 per thousand. Order from Superior Shooting Systems, (806) 323-9488. Incidentally, the Third Batch of brass is due in approximately 2 weeks (we will have hopefully filled all the backorders by the end of Nov.) The Third Batch of 6XC brass is approximately six points harder than Lapua (on the Knupe scale), which means that there will not be any stickiness at the top of the bolt lift.




That's pretty neat! I have heard the brass is great stuff.



The 280 Remington is overbore.

The 7 Rem Mag is over bore.