$LLLI : Versatility is another great advantage of the Lamperd Less Lethal product line. The Lamperd team has developed its extensive line of over 300 different products to give police and military personnel the tools they need to more safely end crisis situations of every kind. The special Lamperd Breaching Rounds can instantly break open a locked door so hostile forces have no time to react, thereby minimizing the risk of injury to officers and innocent people in the area.

From the LLLI website:

THE BREACHING ROUND, DESIGNED TO DEFEAT DOOR LOCKS AND HINGES.
The breaching round is fired four (4) to eight ( inches from the target, at impact the metal powder filled projectile disintegrates, dissipating its entire energy on the target, providing access through doors by removal of door locks or hinges through kinetic energy impact.

The Breaching Round is a 12 gauge cartridge which produces 2,080 foot pounds of energy into an area 0.75 inch diameter. It is constructed of iron powder and polyurethane and cloth. It is frangible disintegrating projectile which turns to iron dust when a sufficiently hard object are struck, limiting penetration through secondary walls and collateral damage.

Source: https://lamperdlesslethal.com/product/12-gaug...ing-round/