Well, my research says that the Norma load was a 200 gn bullet with abt. 1300 fps. I just couldn't find out the powder used. I wouldn't call 200gn@1300fps mild ;-)
Interesting stuff. Thanks for sharing. I wonder if age of the ammo had anything to do with it? But I can also say, Glock barrels are the slowest of any of my barrels in 10mm. Every aftermarket barrel I have shoots faster than a stock Glock barrel.
I was early into the 10mm back when Norma loaded for it. My chrono results were right at 1200fps from my then new Delta. The 170gr were closer to 1250fps. So no 1400fps loads ever.
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