I could spend about 3 long days at the range shooting up all of the test loads that are sitting on the table in plastic baggies, all labeled and waiting.
Lately been fiddling with a new 222 Rem, and yesterday loaded up some rounds at different lengths. This rifle has lots of free bore, so the COL is getting fairly long. 40 gr Nosler BT's over 21 gr 4198 and Rem 7 1/2. The velocities at published COL are 150 fps less than advertised, and the accuracy has been spotty. Hope to find that magical COL. But if not, then more test loads will be concocted in hopes that gun will be the magical sod poodle exterminator deluxe.