I've had both, still have the .240 Wby.

I think the 25-06 is actually the better round. It's more versatile and brass is less expensive. Yeah, I know, one can form .240 Wby brass from 25-06 cases. But, that's a lot of trouble.

The 25-06 will shoot light bullets very fast, like the .240 Wby. It will also shoot heavier bullets that, IMHO, are better projectiles for whitetails, etc. It's a better all around caliber.

You need to read the Layne Simpson piece on the Whitetail outfitter who kept detail records of deer kills over a number of years. This man had nearly 500 Whitetail kills in his log and .25's were the champ regarding DRT's and distance traveled after a hit.

And I no longer own a quarter bore... blush

DF