Use a MEC for your shot shell reloading and a different press for rifle/pistol reloading. I have two MEC 600jr presses, 12 gauge and 410 gauges. The 12 guage will reload 2 3/4" or 3" shells and the 410 will reload 2 1/2" or 3" shells. You could buy the conversion kits from MEC and possibly make the adjustments for the 1/4" difference between 2 1/2" and 2 3/4". I've never tried and just use the two different presses instead of messing with my adjustments all the time.