just playing around with the chrono today

250savage 24" bbl short action rem 700 100 hornady flat base 40.5 imr4350 2765fps
120speer flat base 41.0 h4831 2550 fps

257 roberts 22"bbl long action rem 700 117 sierra bt 43.5 h4350 2785fps
120 partaion 43.5 imt4350 2865fps
120 partation 48.0 rl22 3009( hot load)

257 rob. 22" bblshort action rem 700--120 sierra fb 43.5 h4350 2740 fps
45.0 h4350 2810 fps
46.0 h4350 2880 fps

25'06 24" rem 700 117 sierra bt 49.0 h4350 3016 fps
50.5 rl19 300fps

the 25'06 with h4350 nad 0 std deviation with 3 shots..

i have killed deer with all 3 calabers and love them all..don't know which is going to be in my opening week rotation.. will open with a rem m7mc in 308 if it isn't raining and a 7rem mag 700lss with a bushnell raingard scope if it is..

My current 250-3000 has a pac-nor barrel I had cut with a longer throat (I only shoot 100s, 115, 117s, and 120s). Try necking up some 22-250 cases (rated to 53,000 CUP) to 250-3000 and stoke that baby up. 100s at 3100, 115s at 2900, and 120s and 2825 are no problem from my 22.5" barrel.

If you're ever looking for a weekend project give it a try...