We've had great results with the WFN series of bullets in these Ruger 44's using the rotary magazine. Only the shorter nose profile of the WFN's will function through the magazine, and still crimp in the crimp groove. The 265's, 280's and 300's all in gas-checked guise of the WFN series of bullets, when sized to .432" (VERY important) shoot like gangbusters, and are world class game loads!
Haven't had any reports of problems due to lead buildup in gas ports at this time.
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