Hondo64d said:
I'm thinking if I can tune the vertical out of this load, it will do everything I could possibly ask of it. I'm probably going to start with systematic seating depth adjustments. Is that the right approach for getting rid of vertical stringing?
Speedy Gonzalez covers a variety of issues that can cause Vertical at this link: http://www.accurateshooter.com/shooting-skills/cures-for-vertical-stringing/
And as you can see, Tuning is just one of them. You can start where you want, then check off the categories, as you go.
When I have vertical problems that are load induced, I can usually solve it
within a 6/10th of a grain Range.
Record what your load is now, then move up or down in 2/10th of a grain increments. For example, if have two bullet holes of vertical sitting on top of the bottom hole and my load is for instance 29.0 grains, if I go to 29.2, 29.4 and 29.6 grains, I can usually eliminate it.
If I feel like it's eliminated, at say 29.4, I try 29.3, 29.4 and 29.5 to fine tune. Once I decide on which load I feel is best, THEN I'll start with seating depth adjustments for further refining. All of this is predicated on the fact that, all the other things that Speedy discusses, were not the cause.
There are a lot of things that can cause Vertical, you have to work through each of them, one step at a time, until each one is eliminated. If you have a gut feeling that it's load related, then start there.