Re: reloading differnt case
Can't say how much effect it will have in a particular gun but it is not a good practice for accuracy and may be dangerous if you're near maximum. Nickel plated brass is brass with nickel plating on top of it, therefore it is thicker. When you resize the internal volume of the case is less than a non-plated case. If you determined a maximum load using the non-plated the pressure levels will be higher with the less volume plated case. Brass thickness varies within the same lot of brass so going across manufacturers just creates more variations and add to that varying hardnesses of the brass. Just isn't good practice if your goal is pressure consistency. If you're not at max and not concerned about developing the maximum accuracy capability of your rifle, then of course they will send rounds downrange.
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