So I did my first ladder test.
Bullet:178gr hornady BTHP
Powder: Re15, 35-44 gr in 1gr increments.
Primer: CCI
Distance: 100yrds
Everything was fired at the middle, where the two pages meet. From what I can see, 37gr is a good place to focus on. 43 and 44 gr caused my bolt to not lock back...