I've had a chance to tinker with a number of the .45s. One out of nine had proper head space; all the rest were excessive by about 1mm. They will fire, as Alvin says, by virtue of the extractor's hold on the rim of the cartridge. Correcting excessive head space is not an easy fix, but head space isnt as critical with a straight walled cartridge as one with a bottle neck.
All that said, they are a hoot to take to the range and will gather a small crowd of on-lookers. I will admit, however, to a little queasy feeling each time I press the trigger.
John
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