Early conversion
See attachments.
The U.S. Army experimented with this early centerfire and found it to be unreliable ignition and cumbersome to load and unload. It was never adopted. The first reliable and reloadable centerfire “outside primed” design incorporated an anvil to basically reduce the occurrence of miss-fire enough to gain Army Ordnance approval after rigorous testing and documentation. That didn’t happen until 1879 with the approved Gill patent design that I posted.
If you read the early Chief of Army ordnance reports, they experiment and evaluate constantly and from every angle prior to eventually approving a proven reliable design. Usually years of testing prior to general approval.
Murph
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