Accuracy is essential for firearms performance because it affects the size and power of the round that is fired. When a round is fired from a firearm, it travels down the barrel and exits at the muzzle.
The round's size and power are determined by how accurately it travels. If the round is inaccurate, it will travel in an uncontrolled direction and could cause damage to people or property. If you want to learn more about barrel rifles, you can search via online sources.
Some firearms can be adjusted to be more accurate, but other firearms require field accuracy. Even if you are adjusting a firearm's barrel for accuracy, that shooting position will affect rapid-fire performance. For example, the shooter may not be able to hold the weapon accurately during the rapid fire because of the recoil forces acting on their arms and shoulders.
When shooting targets at an indoor gun range, field accuracy is required to hit targets beyond 50 yards. This type of target has five red circles marked on it. The size of the circles is from 1/4" down to " in diameter. At 100 yards, a round hits every point on the target except for the center circle.
With a "1-in-10" target, three shots each miss one point by about ¼ inch, but the fourth shot misses two points by ½ inch. The average horizontal dispersion from 25 yards to 300 yards is 0.6", which means that the average distance from your second shot to where it hits the target will be 3". This type of accuracy is called a tight group.