I definetly want to be able to go up to 120gn bullets. Just sucks I have all sorts of 250 supplies and no 250 right now. A 284-25 sounds real sharp, does the 257Rob compare with it?
Can 250Sav dies be opened up to work with Ackly improved rounds?
AARRGGHH!
AACCKK!
URG!
As long as your twist can accomodate them, you should be able to reasonably wring 2650-2700 FPS out of 120-grain slugs in a .250-3000. I just think there are better choices for launching that weight. A .257 Roberts should be able to reasonably do it at 2800 FPS.
The cost and trouble to ream .250-3000 dies to .257 Roberts can't quite be justified over buying a new set.
Of course you're in a good place to turn that stuff over should you decide to go with something other than .250-3000.
