X-bolt U.M. magazine load length

[cohunt]

Does anyone own an x-bolt rifle in an ultra mag cartridge?

What is the max load length? Is it the same as their standard magnum long action (rem mag) magazines? Or is it longer?

I haven't seen any aftermarket options for the x-bolt for longer loading so I was wondering what max length was possible in the factory u.m. magazines

 

[cohunt]

Anyone have an xbolt U.M. ?

 

[Buttermilk]

Mag length is about 3.660" -/+ for the X-Bolt 300 RUM box which is about the same as my 28 Nosler box mag.