I haven't been able to find much information here on this cartridge. The reason I'm asking is that I have a donor Remington 700 action that was once a .338 win mag, then re barreled to a 7mm rem mag and I would like to convert it over to a long range rig with horse power. From what I've read so far, it ruled the bench rest scene from the 60's thru the 80's. Shorter case than the .300 win mag, uses less powder but achieves the same velocities, able to seat long bullets out farther, dies are easily available, uses .338 win mag brass, I don't see what's not to like about it. Anyone with experience with this cartridge?