I used to sort by headstamp, but I don't now.
I trimmed them to the same length, for more uniform crimps. After first trimming, never trim, again.
I don't shoot Bullseye, I shoot Cowboy Action. Accuracy is acceptable for my needs.
Hunting loads are seperated by headstamp.
Pursuit of "most accurate" means being anal towards uniformity and consistency.
To the point of weighing bullets and separating by weight.
I bought a box of .452 cast bullets, the guy had them divided into zip-lock bags. 199.8, 199.9, 200.0, 200.1, 200.2, 200.3 grains.
He about stroked out, when I dumped them into the box, together.
Matter of choice, how much effort you want to put into each round.