I have access to 7-8 different powders to use for a .223. Would selecting a safe mid range velocity of say 2875 fps using a 50 grn. bullet of my choosing, letting Quickload pick the powders and load weights for the 7 powders, based on vel. and pressure then shooting 5 shots of each powder load . Would the results be a good indication as to what my gun likes. Is this a viable short cut if you may to narrowing down an accurate load by using say 35 shots, as opposed to using 35 shots based on each powder (245). 100 yds 7 targets best group wins, then fine tune from there. Any one have luck with this?