The 338 Edge is a simple neck up, a 300 RUM to 338.

The 338 RUM case is shorter then the 300 RUM case.

That's why Shawn used the 300 RUM case for his Edge, just to get the "edge" over the factory 338 RUM.

122gr capacity for the Edge is a bit high, it's right at 115gr.

It's all splitting hairs as far as performance, not an animal in the world will know the difference.

I would personally skip the Edge and just go with a 338 RUM, but if I could get any 338 cal it would be a Titan or Snipetac!