Hi. I'm thinking about switching from a 225 AB for the 225, or 250 MRX, but was wondering how long the MRX is compared to the AB. I won't do it if I have to sacrifice powder capacity. I'm pushing the AB @ 2900 fps in my M70 338 WM now, but if I can get the MRX to the same speed, with the 1/2 moa...