That is how I ended up with the 120gr load I have, but of course the Mashburn (7mm/300 WinMag aka 7mm Practical in my case) outruns the WBY by a bunch at the end of the load development phase. I think that the case capacity on the 7/300WinMag is not far off from a 7mmSTW, so starting loads for that round might be an OK beginning place, too.


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