I need some advice about the barrel length on the 250 Ackley. I'm going to put one together and would like to know what type of REAL gain or loss in performance the 2" will make. Does anyone have any actual experience with this? What should velocity difference be in these barrel lengths with this chamber? What powders would be top performers? I plan to run 80-100 grain bullets, mostly 100 grainers, in a 1 in 10" twist. I've not been around a 250 Ackley, but I'm eager to see what it's capable of. Any and all advice is greatly appreciated.

THANKS!