Sorry n-565* was used. Not 566. Fat fingers lol
Forgot to mention I never had any pressure signs and I was .2 grains away from max load in the book with the last shot. I was thinking of loading up 5 or 6 more going up the ladder and finding where I hit pressure and see if I can find another flat spot. I like that 80.2-80.6 velocity. I’m hoping I can get some good accuracy there.1. 79.2 to 80.0
2. 80.2 to 80.6
Seems like #1 offers a very wide flat in velocity. I would start here looking for a node.
#2 also has a flat, not as wide, but assuming you are close to max charge. It's worth doing if #1 doesn't settle down in ocw testing.
Speeds are very close in either so I would prefer to be off the max load in #2.
79.8 or 80.4 appear to be the middle of two fairly flat node areas. I will suggest running the test a couple more times. One data set can be deceiving. If I had to pick one based off of this I’d say 79.9.