120 class powders

[jasper2408]

Here is the first time that I can find a Satterlee video where he explains his 10 shot ladder if you want to watch it.

https://www.youtube.com/watch?v=ACyfeeBHVOA

Here is a graph of the ladder that he shot in the video. The red lines are where he chose to start his test rounds (50.4gr and 51.5gr). What he calls the middle of the nodes are 50.4gr and 51.6gr, which is at the peak. The higher velocity red mark is near max so he moved it back .1gr to be safe as he was trying to find the max load for a new cartridge he was working on.

Since the above video he has modified his method slightly and everything I can find recently he starts where the SD/ES is the best and then goes .1gr-.2gr on each side. Also he is still looking for a velocity(pressure) node that correlates with the SD/ES. One thing he says in the video above is that he is more concerned with ES than with SD. Keep in mind that he is going to be shooting at 1000yds(or less-PRS) so that is what he is developing his loads for. He also claims that his best loads have always been found using this method first.

I haven't really delved into his 2.0 version as deep as I want as I am going to try Eric Cortinas method when I get my rifle back.

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