123, I'm no salty dog at this but this is the stepwise loading process I have come to figure works best (for me). It seems to streamline the process and (for me)saves time and $. The most important thind (for me) is seating depth. Use a comparator as discussed above as the OAL of the bullet will vary from type to type and lot to lot. But the ogive is the same. You dont need all the fancy tools, but they help. Seat a "dummy round" (no primer/powder) further out than you expect necessary. Color the bullet either with a sharpie marker of by holding it over a candle to put a soot residue on it. Chamber the round and extract it, you will notice the color is rubbed off at the ogive of the bullet. Seat it a bit deeper and color it again, repeat till you are barely rubbing the color off.
Pick a powder, any acceptable powder. pick a mid line powder weight. Load 5 at this seat depth. Crank your bullet seater down about 1/4 turn and load another 5 and repeat and repeat and repeat...I usually make 5 or 6 sets of 5 all with the same powder weight, bullet, primer, and brass. Very important RECORD THE LENGTHS keep good records.
Shoot, and take your time (think cool barrel). Which ever depth gives the best group is the best depth. Dont be discouraged if the best group is 2" and the worst is 5", this is still the best seat depth.
Now work the powder, try different weights and types. Find the best groups then experiment with primers.
Keep us posted with your results. This method has given me groups as small as .1335 out of a stock CZ .222. Good luck.
A scalpel can be just as effective as a broadsword
Obviously, Occam was not a reloader