340: Had both old and new versions of both scopes. I like the 6x36 better. I think the 6x42 is sensitive to ring spacing and a 6x42 gave me problems on two rifles a year or so ago.

I don't bother with the 6x42 and just use the 6x36.



The 280 Remington is overbore.

The 7 Rem Mag is over bore.