Is the slightly out-of-subsequent-group cold bore first shot a function of the rifle and barrel or purely the load?
Will there be one load/bullet combination for every barrel that will go to the same point whether the first or the fiftieth shot of a session? Or is it just a vain search?
Most of the loads and factory rounds that I have found to group well in a range session...warm barrel...shoot 20mm-ish high from a cold barrel. Is this because that is what all rifles do, or because I have still not got the load right?