The size of numbered shot decreases as the number increases. In hunting, some sizes are traditionally used for certain game, or certain shooting situations, although there is overlap and subjective preference. The range at which game is typically encountered and the penetration needed to assure a clean kill must both be considered. Local hunting regulations may also specify a size range for certain game. Shot loses its velocity very quickly due to its low sectional density and ballistic coefficient (see external ballistics). Generally, larger shot carries farther, and does not spread out as much as smaller shot. Buckshot Buckshot is a shot formed to larger diameters so that it can be used against bigger game such as deer, moose or caribou. Sizes range in ascending order from size #B (0.17 in, 4.32 mm) to Tri-Ball. It is usually referred by the size, followed by "buck", e.g. "#000" is referred to as "triple-aught buck" in America or "triple o buck" in other English speaking countries. Buckshot is traditionally swaged (in high volume production) or cast (in small volume production). The Bliemeister method does not work for shot larger than #5 (0.12 in, 3.05 mm), and works progressively poorly for shot sizes larger than about #6. Lead shot comparison chart Below is a chart with diameters per pellet and weight for idealized lead spheres for U.S. Standard Designations with a comparison to English shot sizes. Applications outside firearms Lead shot is also often used as ballast in various situations, especially where a dense, pourable weight is required. Generally, small shot is best for these applications, as it can be poured more like a liquid. Completely round shot is not required. When used as a pourable/mouldable weight, the shot may be left loose, or mixed with a bonding agent such as epoxy to contain and stabilize the pellets after they are poured. Some applications are: Stress testing: Providing variable weights in strength-of-materials stress-testing systems. Shot pours from a hopper into a basket, which is connected to the test item. When the test item fractures, the chute closes and the mass of the lead shot in the basket is used to calculate the fracture stress of the item. Hydrometers: use a weight made of shot, since the weight has to be poured into a narrow glass vessel. Split shot: a larger type of lead shot where each pellet is cut part-way through the diameter.