"The shorter fat powder column is absalutely an improvement,
every accuracy record is held by a short fat powder column case design. There is no one designing cases that are skinny, long, belted and have mass amounts of taper"
Ken Brucklacher Sets 1000-Yard Score Record: 100-8X « Daily Bulletin
Every accuracy record, are you sure?
How old is the design of the 300 Weatherby?
Lets see, a belted cartridge based off of the 300 H&H magnum developed in 1944 sets a record.
I did read the comments to the article, it's a theory and a guess, no one has documented proof that shoulder angle extends barrel life, too many variables involved. You show me documented proof and then I'll believe you.