content_output-023_8 (Q5738)

Definitions—Ballistic action of an explosion—Formulæ for converting “work” into footpounds—Classes of explosion—Wave pressure; its effect—Some examples and deductions—Express rifle burst with fine-grain powder—Relative strength of explosives—Excessive pressures with nitro-compounds—Bursts with concentrated powders—Excessive charges of nitro-compounds—Fouling, erosion—The bursting strain of gun-barrels—Recoil, jump and flip—How shot emerges from a sporting gun