Here is the TLDR version from the link that
@KYAggie posted above.
Here is an observation of my own in Mark's charted data. Notice how if you pick any one rifle and follow the line while watching the vertical scale, some guns are much tighter than others and stay that way for several steps of depths. Other guns jump up and down worse than the stock markets and it would be hard to pick a durable zone.
Based on the sum total of the chart, you might say that all of these guns shot pretty well and that you could just jump 0.020" and not worry about it at all. If anything, the context of a hunting or PRS rig where the ammo is all pre-loaded is one thing, a BR match where a relay is 5 targets of 5 shots plus sighters, but they can tune in real time between relays is very different than pre-loading.
There is nothing wrong with giving seating depth a try, other than the bbl life and resources spent on it. If the OP's rifle is for hunting or low volume shooting, then I would suggest he starts at jump 0.005" and takes it in steps of 0.005" to go seven or eight steps and see if it makes any real difference for him at all.
Here is an example of a match bbl in 6 Dasher with a Berger 105 Hybrid where the graph represents the vertical at 600 yards. Not counting the first two steps that were rediculously lucky where all three shots were touching at 600 yards, there are two places where the seating depth seems to be quiet. One zone is roughly 0.035" - 0.045" and the other at 0.060" to 0.080".
Keep in mind this is low sample testing of only three runs. Hard to say if these results would keep or if the verticals would spread out with more samples. The gun shoots just about anything into under 0.5 MOA at 600 for 20 shot strings. Bartlein bbl. chambered by Gary Eliseo.