I have never loaded for the 300 Win. Mag. but regardless, I'll bet that it will be hard if not impossible to get much over 2200 fps with a 180 grain cast bullet. Personally, I'd be happy with 1800-1900 unless I went to the work of messing with paper patched bullets. As you will find when working with cast bullets, you just can't expect jacketed bullet performance in either speed or expansion for the respective cases. A 30-30 or 308 case gets about as much speed from cast bullets as you can get from any of the larger cases. The cast bullets will just not handle higher speed. So, just because you have a 300 Win. don't expect to get jacketed bullet speed. That goal will defeat you.
Last edited by Rolly; 10/23/03.