obturation
(noun)
noun
1. The act of stopping up, or closing, an opening.
2. (firearms) The process of a bullet expanding under pressure to fit the bore of the firearm, or a cartridge case expanding under pressure to seal the chamber.
(noun)
1. The act of stopping up, or closing, an opening.
2. (firearms) The process of a bullet expanding under pressure to fit the bore of the firearm, or a cartridge case expanding under pressure to seal the chamber.