From this you learn how to articles extracellular measured in a replica of SAG.To measure how much our extracellular carbine bullets / balls in one minute we have to measure the time a certain number of Weierstrass. For this task we will need a computer with sound card, microphone and software that enables audio recording and playback with a unit where the exact time. Mike set the end of next Lucy replica and either fire a certain number of shots on a series on the computer and check how long it took to our reply, or fire for a specified period of time for example 3 seconds, and read the chart so far as the sound wave at that time the rifle has performed work cycles. This measurement should preferably be dry that is, without a ball - with an empty magazines or without it, because otherwise might drown out the sounds of balls hit on the bottom of the piston cylinder. Number of shots divided by time will give us the so-called extracellular theoretical. It is convenient to simplify the form of X to the quotient of shots per minute, since it is a generally accepted form and can be easily compared with other replicas.