Let me make it clear with a story of my fathers grandfather. He served in the Austro-Hungarian Army in WW1, and he fought in Italy. He always said stories about, that he and his fellows couldn't do anything with their bolt action rifle. In an assault, they had to rush towards the enemy trenches. No shooting, run or you die. When the very little remaining of the assaulting team (as they had nothing to suppress the defenders machine guns) reached the trenches they faced the enemy in 1-2 meters. They couldn't fire their rifle rapidly, had no time to reload. So they started to use revolvers, hand grenades, DIY battleaxes, swords, and mostly their bayonet. They had to fought a brutal, middle-ages hand to hand battle with the enemy. The consequence was thousands of losses in hours with no result as the riflemen charge could be easily broken by one machine gun.