Re: 338 RUM vs 338 EDGE
300 ultra necked to 338. Been called by several names but seems like edge works on this site. A number of people all over the country did this one when Remington first introduced the 300. They said a 338 would soon follow so many did a 338 reamer off the 300 thinking they had a jump start on the 338 ultra then remington through a curve ball and shortenned it so it would feed better through the 700 action. I have shot many over the chrono and they are all about the same. Just depends on your individual barrel. These two plus the 340 wby are all about the same in a hunting situation. On average the 340 wby falls 75-100 fps off the 338-300 ultramag. The 338 and 338-300 ultramag just depends on your barrel really. Just not any real difference. All three are very good rounds.
Predictions are difficult, especially when they involve the future