RE: 7mm-06 and 280rem
It is the same cartridge. That is it is the 30-06 case necked down to 7mm or 284. There may however be some wildcat versions out there that have different shoulder angles or a slight veriation in case length. If one is not sure what he has then it would be wise to have a good gunsmith verify the exact measurement. The 280 has been called the 7mm-06, 7mm Express and 280. Regardless of what its called, it is one of the best long range big game cartridges out there.