You know that there is nothing wrong with your Luger because of your result with the JHP bullets. That gives you a base line, and a standard. I would try the medium burners if the fast burners(Red Dot, Bullseye, etc.) give you dismal results. I have a fairly large amount of Xtreme plated bullets in different calibers, and am producing adequate/acceptable accuracy results with them. They do NOT like to be pushed too fast, as one can actually peel the plating off of the lead core. 11-1200FPS is the max velocity for them.
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