.300 Win Mag
The well-known .300 is called in full .300 Winchester Magnum or abbreviated .300 Win Mag. And as the name indicates a product of Winchester the rifle and ammunition manufacturer, launched in 1963.
The basis was the .375 H&H Magnum hull, from 1925, which was blown out and shortened and whose neck was reduced to a .300.
This also created the “problem” of the .300, namely a neck that was shorter than the diameter of the bullet (.264 versus .300).
But despite this technical “shortage”, the .300 was still a success. Not only hunters, but also sports shooters, soldiers and police services. The latter especially for Long Range and sniper assignments.
The competition in this caliber is the more powerful .300 Weatherby Magnum and the newer .300 Remington Ultra Magnum. However, the original .300 has won several 1,000 m competitions since its introduction.
The only downside is the recoil. With an energy that is about 40% greater than the 30-06. This brings this caliber to the upper limit of what is permissible (with prolonged use). But with modern running with reduced recoil (Mag-na-port) and energy absorption in the stock and absorbent pump shoe.
In terms of bullet, there is recently the new CDP with Controlled Deformation Process. This causes a mushroom formation or deformation depending on the “body” that is hit. Or smaller with Roe Deer, larger with Deer and Sus Scrofa.