The Complete reloading Manual for the .280  Remington, 2016 latest edition, 83 pages that features 2372 loads, 93 bullet designs, 56 different powders. Data in this manual is comprised from

Hornady Bullets
Nosler Bullets
Sierra Bullets
Speer Bullets
Lyman Bullets
RCBS Bullets
BARNES Bullets
Accurate Arms Powders
Alliant Powders
Hodgdon Powders
Winchester Powders
IMR Powders

280 Rem