I'm working on the RL26 and 200 partitions for an all around load.

As far as published data goes, the closest I can get is my Sierra manual for 200gr bullets. It brackets RL26 with 7977 and H1000 (burn rate chart). The max loads are 58.7 and 58.1 respectively, with 2450 from a 24" barrel.
Based on that, I would think ~58.5 would be a max and 2400fps from my 22" Winchester would be near pressure. Not knowing the bearing surface of the two bullets and pressure differences will be a factor also, not sure how to handle that. I read a guy once that said once you see brass flow you well past presuure limits.

I'm not understanding these 60gr and greater loads, unless the Partition produces way less pressure.

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