When you're launching a 300-grain bullet past 1,200 fps, you want to keep the margin available in case of trouble, not use it to generate a few more feet per second. 44 Magnum loads maxing out at 35,000 psi (or 38,000 CUP). All the top-end reloading data with pressure-tested data shows. The pressure can't be increased, for there is no margin left. The only way the newest loads can be used is to extend some of the limits of what Elmer Keith started: more weight out of the case and slower powders. The bullets range from the 270-grain Speer Gold Dot to the Hornady 300-grain XTP and Oregon Trail's 310-grain Trueshot. 44 Magnum," is achieved with even heavier bullets. The newest and even more powerful level, the "third.
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