In the case of a Remington 700 Action there is a centerline. Every component of the rifle will reference to this centerline. It serves as the centerline of the bolt-way and the centerline of the threads. It should also be the same centerline of the bolt body and the firing pin hole.rom the factory the receivers are threaded 1.0625 X 16 TPI. With a very sharp single point carbide tool I re-cut them to 1.075 X 16 TPI (that s just enough to clean them up completely and establish a new standard). On the same set up the recoil lugs are re-cut and the receiver face is re-cut.
home / medterms medical dictionary a-z list / sputum definition Medical Definition of Sputum Sputum: Mucous material from the lungs that is produced (brought up) by coughing.
Guide. A sputum culture is a test to detect and identify bacteria or fungi (plural of fungus) that are infecting the lungs or breathing passages. Sputum is a thick fluid produced in the lungs and in the airways leading to the lungs.A sample of sputum is placed in a container with substances that promote the growth of bacteria or fungi. If no bacteria or fungi grow, the culture is negative. If organisms that can cause infection grow, the culture is positive.putum is a thick fluid produced in the lungs and in the airways leading to the lungs. A sample of sputum is placed in a container with substances that promote the growth of bacteria or fungi. If no bacteria or fungi grow, the culture is negative.