Within the red line boundaries, shooters have free rein in which direction they move to hit their targets as quickly as possible.
They will be judged on speed, accuracy, and power of their weapon as each shooter's bullets are scrutinised and tested to make sure there is a level playing field.
"That way no one can come in with soft ammunition and get an advantage. It's all about the gun," said Cole.
Categories include open-class gun, which can be modified weaponry, as well as standard class gun, which restricts the modifications to a gun which can fit inside a box.
Other more traditional categories are production guns, which are how they leave the factory, and the classic division of weapons going back to the World War I era. Interim results will be posted on Saturday afternoon, which, after a one-hour time limit to make protests, will become finalised.
There will be national and international winners in various categories, as well as IPSC President's medals up for grabs.