Having owned and loaded for both, shot them extensively out to 500 yards,at the end of the day, there is no difference between them. You will load a 140 in the 7mag to 3200- 3300 without incident; and a 130 in the 270 Weatherby to 3300-3350 or so. Sight them the same way, and drop to 500 yards is identical.I have not hunted with a 270 Weatherby, finding the differences between them to not be worth keeping them both.So, the 270 weatherby is gone.
I've been hunting the 7 Rem Mag since the 70's; if you have one, you have the other. I would not rebarrel a 7 mag to 270 Weatherby in the hopes I would gain anything at all.
