using mag primers

[gadabout]

Had to buy some small pistol mag primers out of desperation yesterday to keep reloadind 9mm for friends. I feel the old rule of thumb was to lower the powder one or two tenths of a grain to keep the charge about the same. I am loading very light anyway so safety isn't an issue but would just like to know everyone's opinion. Craig

[The_Shadow]

You'll be just fine Craig...if you had a chronograph you would be able to measure the difference.  Maybe 35 fps greater with the SP mag primer using the same load.
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[gadabout]

Thanks Wade!! I knew it was not an issue until you got real close to max. I just wanted to get close to what I was loading with standard primers. I could only get 400 so they will be gone quick and I have another show August 1 to find other standard primers. Thanks again for the quick response.  Craig

[gadabout]

Well just finished the first 100 Federal mag primers and all went OK. The only difference is that the primers seem to "pop" in a little different feel than my Winchester primers. Other than that all is good.  Craig