They are also known as the black truss markings. They provide a quick visual for the tape user and speed up the measuring process. Originally, 19.2 inches was used in metric layouts. Dividing 5 into 96 inches (8 feet) gives 19.2 inches, which yields five trusses per sheet. The black arrow in the photo to the right points directly at the black diamond located on 19.2. The red stud markings every 16 inches allow for a standard layout of six studs per 8-foot (96) section.
1 Minors under 18 must be accompanied by an adult at all times in the range and store. 2  You must be 21 years old to shoot a handgun & 18 years old to shoot a long gun without being accompanied by a parent or legal guardian.
Of particular interest to international tourists interested in public access shooting ranges in the United States while on vacation, especially gun-friendly states include Kentucky, Tennessee, Florida, Alabama, Georgia, New Hampshire, Arizona, Nevada, Colorado, and Utah, among others.hooting range near Pittsburgh, Pennsylvania. In most states in the United States, there are numerous public-access shooting ranges, ranging for example from 144 in Florida with a population in excess of 18.2 million to 9 in Hawaii with a population of 1.3 million (numbers taken as of October 2008).