" more accurate, more effecient use of powder, uses an average of 10% less powder. Shorter action which means - Shorter lighter rifle, less bolt throw, no belt, longer case life, head spaces on the shoulder verses the belt. Long range compitition shooters are going to the "
Sounds like a good description of the 6BR, or marketing hype.
It's not just the cartridge. The rifle and shooter have a hand in the equation also, and the most expensive, custom rifle and scope are useless if the rifleman doesn't know what he's doing.
500yd group shot today with a Savage 112BVSS in .300WinMag. I used "belted" Frontier cases, 190gn SMK @ 3145fps using 80.5gn H1000 and CCI 250's.
The two top, right were sighters and then I went for the group. I wanted to put the group on some new 3/4" steel I used to re-enforce my gong with. This rifle is stock, bought used for $500, with the exception of a Rifle Basix trigger I installed, and the glass is a $300 Nikon Buckmaster 6-18x40 TD.
The .300 Winchester Magnum has been around 47yrs and it still kicking butt.
JohnnyK