I’d load the list above plus 2 loads 15% higher and lower of each powder and shoot all 15 of them on one aiming black (3,6 and 9) o’clock. Then you’d see some trends. One group means nothing. Even for powder selection.
Check out for good info.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?