I think we were just sharing a little sarcasm.
I trust my "next shot" on critters an awful lot to the drop data that I gather shooting groups at distances. I just practice my actual field shooting differently.
I do truly believe in cold bore practice. That first shot of the day is as close to what you'll get in a hunting scenario. Every subsequent shot of the session is borrowing the data from the first. Drop data should be predictable...it's your wind calls that will get you.
Consistency in everything shooting/loading leads to consistency in accuracy. Equipment advances make it easier for the average handloader to increase their ammo quality. My comment about hearing that 'load development is a myth' etc... is because my testing and logged data suggest otherwise. Very much so actually.
I absolutely believe in barrel heat providing a variable when it comes to POI shift [on cheap factory barrels]. I cold bore map everything that I have, because I'm blessed to be able to shoot off the side of the house and it costs me no extra logistical effort. In my examples, the cold bore shots on my Savage and old Remingtons are .1 - .2 from where the barrel will shoot when warm. Those guns are just zeroed for the CBS.
I've got 7-8 cut-rifled barrels on various guns at the moment. I don't think a single one of those has any noticeable difference in impact from shots 1-20 in a session. It's the reason why I've switched to cut rifled barrels. * I do have a couple CHF barrels, and don't see a POI shift either.
Different dudes will have different experiences. I'm not saying that their results have to mirror mine, I was just making light of the fact that so many guys think that their method is the only viable one.