Rimfire transitioned to centerfire circa 1866 with the .50-70 Gov't. leading to the .45-70 Gov't. of 1873,
and all the Sharps and Remington, etc., cartridges galore.
Even though the UK held onto their muzzleloader target rifles longer than we did,
they had similar developments in sporting and military cartridges,
most notably the BPE of .450 bore and 3-1/4" case length that became the .450 NE.
More fun along the way:

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One hilarious side trip on this roadtrip was the Winchester bomb below: 200 grains of BP !

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Finally, smokeless in the .30-40 Krag, same as with the .303 British transition from BP:

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Funny how Winchester started doing the belted brass case before H&H did it.
The .458 Winchester should be seen as having more of a purely American heritage.


Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.