Can you show us a pic of a 338L imp cartridge compared to a regular 338L?
Desert Fox posted this pic in another thread.
With a safe full of "tactical" rifles I thought I'd go in a different direction with my 338 LM Imp. and this is what I came up with. I would highly recommend the imp. version of the 338.
Stiller TAC 338 action
Fluted Rock Creek 9.37" twist 5R 1.360",.960" @ 31"
Seekins DBM, 30 moa rail and rings
5-25x56 w/ Gen II XR
A5L stock by Joel Russo
Gunsmithing by Harold Fredd