When I worked that load up, there was no published info that I could find. Others on here have worked up this same load in their rifles with no problem.
Just Like, when I worked up the load with Rl-23 in my 300 Win.Mag. I could not find any load info.
When I work up a load, I look for accuracy first, not speed.
You only have to make your self happy.
Again, wishing you the best.