How frequently should you swab the bore on an 81mm mortar?

Swabbing the bore of an 81mm mortar is essential for maintaining the weapon's accuracy and ensuring safe operation. The correct frequency for swabbing after every 10 rounds and after a fire mission ensures that residues from propellant and projectile materials are effectively removed. This practice helps prevent any potential issues like an obstructed bore, which can lead to dangerous malfunctions, and also assists in preserving barrel life and operational effectiveness.

Choosing to swab after every 10 rounds balances the need to maintain the cleanliness of the bore with practical considerations of time and resources during operations. Additionally, conducting a swab after every fire mission allows for a thorough inspection and cleaning, ensuring the mortar is ready for its next use without issues related to fouling. This systematic approach reflects the need for both routine maintenance during sustained firing and more in-depth cleaning after operational engagements.