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Benny, I think the 100-grainer is too light for that chambering. It would require a faster powder, but such a powder would fill only a fraction of the cartridge case.
You might want to look at either a 115 hollowpoint (Speer, IIRC) or a 120 softpoint (most makers) over a medium burn powder like Varget, 4895, RL-15 or similar. For the 154, your powder choices are excellent.
Your barrel length and twist will have surprisingly little effect - book data will be still be quite close. As always, start low and lean towards accuracy over velocity.
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