.577/450 Martini-Henry dummy round

.577/450 Martini-Henry dummy round

thingiverse

577/450 dummy cartridge. I wanted to run the action on my Martini-Henry without the dangers of using live ammo. I used some historical drawings for the dimensions and then drew it up in fusion 360. Bore diameters for Martini-Henry vary so I left the bullet tip intentionally undersized so it doesn't engage rifling and get tore up. I printed on 50% infill so it can withstand continued use but it could probably be printed on 20% and work just fine.

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