While waiting to try out the novelty on the field, we begin to make eye contact with this beautiful technical commercial sortie that Sabatti proposed at the Vicenza fair. These are specific bullets for multiradial rifling which represents one of the strongest points of the Gardone manufacturer's production. The study was conducted with Luciano Galloni, who we could define as a free thinker since he is dedicated to different branches of technology. We briefly outline the highlights of the design and construction of these balls.
The material is pure copper while the realization is certainly challenging as execution times, but it allows you to get the best: each ball is turned individually. This procedure needs no further explanation: the cylindrical copper bar is fixed on the spindle and from there the passages are controlled by the electronic board to guarantee exact repetition piece by piece.
At the moment we will have .308 ”caliber bullets available in the Green Hunting and Green Long Range versions with which we will be able to indulge ourselves by creating suitable reloads for both the .308 Win cartridge. for which one of the rifles under test, the one with the MRR rifling, will be chambered for both a reliable .300 Win. Mag., However, equipped with conventional rifling. The shape of the bullet brings out the three forcing crowns protruding from the body, useful for creating a perfect clogging with the lines, while maintaining a contact surface and therefore of very limited friction: optimal sealing of the gases and greater speed compared to the traditional materials from which they descend less wear on the barrel itself and fewer parasitic deposits. For the lazy as for the virtuous it means less cleaning work.
The profile of the forcing crowns is designed to improve aerodynamics and reduce the amount of material subjected to the compression imposed by the passage in the rifling: remember that the MRR crushes the material of the ball and does not carve it. Subsequently, the under-calibrated areas located between the forcing crowns are no longer cylindrical, but thanks to the turning, they have a truncated cone profile allowing to increase the space where the material spread by the passage in the MRR is positioned.
In external ballistics, particular attention was paid to sections, shapes and masses to bring the dynamic and static center of gravity as close as possible. In hunting balls, pure copper offers good malleability, therefore an upset ensured at different speeds and firing distances by the progressive section of the apical hole and by four pre-established fracture triggers.
The patent application which also concerns the external appearance of the product is still pending: this objective will also be achieved within the time allowed by the present situation.