Hi Tony,
I see no buttons....?
Seriously,Tony, I'm familiar with the Whitworth & Armstrong systems, but I didn't see any lugs/buttons on the projectile's outer edge that could engage any form of rifling. The caption was quite specific about the development (but of course, we all know how accurate many museum captions really are!)
Mike
Last edited by Mike Cecil; 01-03-19 at 05:23.
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