In your situation I would fire the 10 round groups (checking for any pressure signs of course) see which powder charge weight produces the best group. beg borrow or buy a chronograph. See if this load is consistant (SD, ES blah blah...) this will tell you if this load will fare well at long distances.
Load another batch of this load 20-30 rounds and see if it is repeatable. If so, then you can play with other advanced techniques, seating depth blah blah...
In my short time reloading (about 2 yrs) I have found I can make very accurate loads just by going to the chrono level of load development. I have not had a reason so far to start playing with seating depth and the distance to the lands etc..
I will sacrifice some velocity for accuracy. I worked up some Javalina loads with 52g Hornady a-max's for my remmy 700 that would chew a ragged hole at 100yds.
ETA-- I just read the link above and I guess I have been finding the OCW for MY rifle....I have not tried these loads in anyone elses guns. I'm still happy