Got my hands on this:
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So I can now compare the unobtainable H4198 with Lt30 and N130.
I started at the same seating depths and bushings that worked with Lt.30. I dropped the load down from 35-36 to 33.8 to 35.3.
The top row I shot a couple of days ago. It did not look good so I backed out of the lands .005 and also decided to work up higher since I was still lower on speed than what shot best with Lt. 30 and N130. They both shined at around 3075 fps+-. The second row was closer to what I expected. 34.3, 34.9 and 35.3 were all .0 three shot groups. I like 34.9.
I will increase the powder charge a bit more and hope that I can find a larger tune window.
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