only contains one range. Most indoor ranges restrict the use of certain magnum calibers, or the use of automatic weapons, primarily to prevent damage to the facilities. Other ranges do not have a caliber restriction, but instead limit projectiles to a certain muzzle velocity, often 2000 feet per second, or bullet construction. Common safety practices Nearly all public ranges require that all firearms be unloaded prior to entering, or leaving, the range facility, irrespective of whether one holds a concealed carry license. The same is true for rental firearms leaving or returning to the rental counter, going to and from the shooting range. Whether indoors or outdoors, all shooters are required to wear safety glasses or goggles, although some ranges will allow impact-resistant corrective glasses as the only eye protection. Ear protection is mandatory either ear muffs or ear plugs, as long as one is within the defined boundaries of the range and the range is hot. For indoor ranges, these must be donned before going through the air lock door, and kept on as long as individuals are within the high noise area. Indoor ranges can introduce the risk of lead poisoning if they are not ventilated or cleaned properly. Lead dust in these facilities can be inhaled or can contaminate skin and clothing. The instructions of the appointed range master are to be followed at all times. Holster drawing, cowboy action shooting and combat-style shooting are not generally allowed, except on specially designated action shooting ranges, which often have additional safety requirements and equipment. Regular public ranges that do allow such shooting usually restrict the practice to designated persons, such as Law Enforcement, professional shooters, or others designated by range personnel. Cost of shooting If one brings one's own firearms, ear and eye protection, it is often possible to buy a 50-round box of 9 mm ammunition and target, rent an indoor lane for an hour, and enjoy shooting for under $50 in the United States. Fees for outdoor ranges are often even less, often running $6.50 for 3 hours of range time. Along with a 500-round brick of .22 LR ammunition that often costs less than $60, it is possible on an outdoor range to enjoy an afternoon of shooting for under $70. Firearm rental fees vary, depending on the model and caliber, but for a typical, non-exotic handgun, costs are only modestly higher. Hearing and eye