You're right, Lou I doubled checked and they do list the 280 as 1-10".
The 280 is an exception in Remington's line......hard to know why.
Unless the intent is to use bullets > 160 grains on a regular basis, the 1-10" works........after all, 270's are 1-10".
I imagine they've got some +/- in the spec too.
MM
