HE SWEDISH ARTILLERY OF KARL XII XVII-XVIII VV. Swedish field artillery, as a kind of troops, was created during the Thirty Years' War (1618-1648 gg.) Great military reformer, King Gustav II Adolf. Following the Dutch He introduced the unification of gun calibers. Also Gustav II Adolf created regimental artillery, which was supposed to act in the combat formations of the infantry. Reforms gave an excellent result. Already in the Battle of Breitenfeld (1631) the Swedish field artillery proved to be one of the most important factors that ensured the victory of Gustav II Adolf. Swedish guns were of excellent quality Manufacture, especially cast iron and iron. Christopher Polhem, Swedish scientist and industrialist, created for them perfect for that time sights and lifting screws for vertical guidance.