I have had both and made the conscious decision to go with the .25/06 for all the reasons not in favor of the .240.

For most deer sized game and with 100 grain bullets you won't see any difference but there is a step up with the .257 caliber that shades the 6mm and the brass situation is a needless additional cost without benefits.

John

When truth is ignored, it does not change an untruth from remaining a lie.