Standard velocity for a .260 (which uses the same bullet as a .264WM) with a 140grn bullet is about 2750fps. It is a very mild and pleasant shooting round. Standard velocity for that same bullet out of a .264WM is 3030fps. If you handloaded it down to about 2800 - 2900 fps, you would be out performing a .260 but yet be still pleasant to shoot and safer for your barrel.
|