Abstract: A set of inert mines are loaded into a canister, where each of the inert mines includes a locating feature for a dispersion strap. A breech includes a reusable slider housing. A closure cap covers another end of the canister. An obturator is inserted into a breech end of the canister and connected as an interface between the canister and a breech. The dispersing strap is anchored to the breech where the dispersing strap is woven around the inert mines within the canister such that the strap traverses the locating feature of at least some of the inert mines so as to disperse the mines in a simulated mine dispersion pattern when the canister is fired.