I have an old issue of Guns & Ammo magazine (40yo), and in an article about handloading the .45 ACP, the comment that they have in the margin for a load of a 230gr JHP over 7.5 grains of Unique is, "Getting warm"!!! I think that's a full grain over what is today considered a hot load of Unique. Has the powder changed that much, or are we just smarter about loading?
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