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Hi all. I have just learned that I have been using the wrong primers for .40S&W. Whoops. I've been using Ramington 1 1/2, and see now that I should be using 5 1/2. Does anyone know if there is a pressure difference between the two, or if it's strictly a cup thickness issue? There's no info on the Remington web site.
I'm asking because all my workups were done with 1 1/2 and I need to know whether or not they need to be worked up and Chrono'd again. Folks at the range say to just start using the 5 1/2 and don't worry about it, but I don't know how experienced these guys are. What do you think?
I'm asking because all my workups were done with 1 1/2 and I need to know whether or not they need to be worked up and Chrono'd again. Folks at the range say to just start using the 5 1/2 and don't worry about it, but I don't know how experienced these guys are. What do you think?