Where to go from here?

[Bigwheels]

In the final stages of load development for my rebarreled 300WM. Benchmark 1-9.5" for Berger 230, &/or Hornady 225's.
I have the charge weight set at 76.0 gr H-1000 from my 2 ladder tests. 1st was .3 gr increments @ 550 yd, followed up with .1gr increments @ 875 yd.
My last ladder put 3 into 1.6" vertical x 2.5" horizontal spread @ 875 yds. Berger Hyb 230 jammed .002".
I want to test seating depth but haven't decided on how to do it.
Another ladder with seating depth from jammed .002" away in .002"-.003" increments?
Round robin them in .005" increments?
Screw it! It already shoots .175 moa.?
Decisions, decisions...

 

[eicas]

I’d be tempted to run with what you got. Thats pretty impressive. Heck...my brain has 10x that error!

 

[DrainTheSwamp]

I usually tune seating depth at 100 yards after my ladder tests. Start at 10thou and go as deep as I ve seen other ppl having luck with them. Before the round robbin sequence I make sure to shoot a few sighters to heat up the pipe and make sure your ammo is all the same temp before shooting.

 

[padom]

I go .005 increments from jam back to .02 off unless a specific bullet is known to like more than .02 jump then I go back farther. I would test at 100-200 yds to remove environmental factors from giving you scewed results...

 

[Bigwheels]

My last load with the 230s liked .015" off the lands but of course the new brl may like something different. Last time I used a couple ladder tests to determine charge weight and then round robin for the seating depth. This time I read an article about the benefits of testing for seating depth with a ladder as well. So now I'm on the fence.
I may just give it a try and see. Will only be 10 rnds, and if it shows a definite pattern like the 2 ladder tests prior then it will give me the info I need with less shots.
FYI here are pics of the 2 ladder tests.