Gentlemen,
It hurts. Most of us have spent unthinkable time doing tests that simply are not statistically significant. If you want the data you can read all of Bryan Litz‘s books. I would start with his series called Modern Advancements in Long Range Shooting.
There is also a guy on YouTube...
Charge weight, seating depth, and barrel tuning by ladder test with 3-5 shot groups cannot do anything but fool you with randomness. If you do a 5 shot ladder test and think you found a node. Repeat the test again. And you have a good chance of the node moving. Repeat the test 10 times and you...
Chase,
Did you ever find a stock you liked? I have never heard of using a Blaser receiver in a stock not specific to the receiver. GRS makes some:
https://www.grsriflestocks.com/