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Discussion in 'The Basics, Starting Out' started by 7101stelk6pt, May 6, 2007.
what is the difference between the 338 rum and the 338 edge
The 338 RUM case is shoter than the 7mm,300Rum,375RUM the 338 Edge is the 300 RUM necked up to 338 Cal with no other changes.......................
The Edge is a 300 RUM case necked up to the 338 caliber.
The 300 RUM case is a bit longer at the shoulder thus holding more powder , 6-8grs more if I'm not mistaken.
I'd figure about 150-200FPS advantage w/the Edge w/300 SMKs