Thanks Daryl, I suppose you mean the old 7x57 when you mention 7mm Mauser, rather than the 7x64.

The 7x64 and WSM ammo comes full of steam from the factory, which suits my needs. What is your particular dislike of the 270 WSM based on? Could it be a contender with 140gr or pointed 150gr bullets?

I note some impressive ballistics tables for the 280 Rem but suspect they relate to reloaded ammo rather than factory stuff. As I recall, the store-bought's pressures were kept down for use in the pumps and Woodies. Trouble is, I'm a timid reloader (just as well, it seems) and rarely get anywhere near the top velocities.

- Paul