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Model 1907 (.351 WSL) Speckin Book
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WACA Guest
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August 17, 2021
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September 1, 2021 - 5:25 am
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Does anyone know of any electronic version of the Speckin book on the Model 1907? I’m looking for load information, in particular using case conversions OTHER than .357 Max (e.g. using .223 Rem), and wondered if the book has any information like that.



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September 3, 2021
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September 3, 2021 - 4:59 pm
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I don’t have a digital copy. But in the book he uses modified 351 maximum cases. I have used 223 Rem case and they work fine. I just us the load data that is out there for the 351 based on the bullet weight you are using. I stick with 4227 for loads because you are usually at full case capacity at max pressure. I plan on trying 350 legend cases to see if they work any better than 223. 

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September 3, 2021 - 8:18 pm
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 Be sure to let us all know your results when you get a chance to try using reformed 350 Legend cases for the 351.

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