| 摘要 |
A muzzle loading blackpowder firearm is disclosed having a barrel with a standard caliber bore therein. The firearm is adapted to fire a projectile having a skirted aft end of a larger initial diameter than the standard caliber bore of the firearm. The barrel has an enlarged bore at its outer end sized to receive the projectile aft end first, and a tapered transition between the enlarged bore and the standard caliber bore so that upon forcing the projectile through the enlarged bore and through the tapered transition, the tapered transition reduces the skirted aft end to the diameter of the standard bore.
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