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Description
The Model
1873 Trapdoor Springfield was the first
standard-issued breech-loading rifle for the United
States Army.
Note:
The maximum calculated barrel length for this
ammunition is 23 cm. The historical barrel length
was 83 cm, and this was used in this design.
However, all calculations for muzzle energy, damage,
range and recoil were generated using the 23 cm
value.
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