Abstract
The paper presents results of the energy expenditures evaluation for cutting the leading belt in barrel channel grooves during shot. The effect of the airspace diameter tolerance on a change of a forcing value and on an energy consumption when cutting artillery shell into the BB rifling has been investigated. It is shown that the artillery shell with a new type of leading belt provides a reduction of the indicated energy expenditures by almost half, which leads to stabilization of the boost pressure and, as a result, to an ammunition dispersion reduction. The obtained results were implemented at different utility models for artillery shells.
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