I think you will find it offers no gains over the .260 Rem on the top end and no gains over the .243 below it.

If you look at the scrutiny that goes into bullets and case design here for example, I would also expect to see great flack generated over seating those long 120 grain bullets in a short necked, low volume case.

AGW

When truth is ignored, it does not change an untruth from remaining a lie.