The chrono tells you everything you need to know.
Trying to read spent primers and case head expansion is twaddle.
Settled @ 46.5 H-4350, 100 NP. From the No.1 26" barrel. 3212, 3220, 3213, for 3215fps. Same load from my 20" .Ruger .257 Roberts gets 3075fps.
Ruger N0.1....................With COVID spacing at the range.