and rolled to smaller diameter of the rifled barrel 30 a forming lands and grooves the means of ignition 70 and propellant 60 are not different from those of conventionally used the rear portion 40 d of the projectile 40 facing the breech preferably has ogival shape and extends deeper into the propellant chamber 30 c the purpose of this ogival shape is to provide better distribution of the fast expanding propellant gases into the grooves 44 during the interior ballistic and to complete the projectile streamline during the exterior ballistic therefore contributing positively for the longest range the rear section 40 d could be shaped also conventionally upon some constructive considerations especially in ammunition for small arms as shown on fig5 a and fig7 the grooves 44 may have their bottom surface marked with fine longitudinal lines in consequence similar to those on the barcode this lined surface can be linked to and represent particular batch number as far as it is permanent and doesn 39 t change by wall friction on fig2 is shown the pattern with the flukes 30 d on the rear section 30 b of the cartridge 30 the radially directed flukes are forming concentric ring around the igniter surface 70 the flukes 30 d are engaged congruently by the same type of flukes 50 a on the surface of the breech block 50 shown on fig1 another preferred embodiment shown on fig3 depicts the cartridge case 30 having the main inner diameter of the propellant chamber 30 c substantially close to.