Ladder Test

[nwmnbowhunter]

I like your guy's ideas of doing a refined ladder after the initial ladder. Focusing powder and info on the obvious nodes makes the most sense. Thank you for everyone's thought processes.

The one thing I have found with going paper only, is that a really accurate rifle beeds to be done further out. My 338edge makes a pretty meaningless ladder at 300, from 87 to 91gr in 1/2gr steps it will put them into a 1/2 moa round group. It needs to be shot out further.
Having a node that many grains wide is pretty unlikely. If you have 500y available I would go in 1/2 gr steps 92.5 to 95. If not I would do a couple 3 or 5 shot groups 93-93.5-94 and see if the small group size repeats.

 

[Asco6]

Oldno7 is correct, focus close to the top end of a node

 

[User4302021]

This thread may help some who have questions on reading groups.

http://forum.accurateshooter.com/threads/long-range-load-development-at-100-yards.3814361/

That is a really famous thread that gets referenced a lot.

Long story short...what it amounts to is an OCW without the round robin firing order. This is what I've settled on for my chosen method.