It has been mentioned that the 45 AR case at one time was built with “balloon head” construction (by the way, when introduced the makers referred to it as a solid head compared to the old folded head cartridges. You can even find cartridge cases with a “S H” headstamp.). Since it was introduced AFTER the introduction of the 45 ACP, it begs the question “Was the 45 ACP ever produced with the balloon head construction?”

Kevin

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