MY factory 338 RUM shoots the 300 berger right at 2650 fps.

Freds Edge has a very minimal advantage over my RUM but he has 2" more barrel. With a 28" barrel i would guess the RUM would push the 300 very close to 2750.

As it is, using Freds 2890 fps his bullet arrives at 1000 yds 130 fps faster and with 285 ft/lbs more energy then my RUM.

Negligible difference in my book.