Abstract: A two-piece firearm projectile includes a jacket and a penetrator. The proximal end portion of the penetrator is received in and mates with a corresponding recess defined in the inside surface of the jacket. A three-piece projectile includes a jacket, a slug, and a penetrator. The slug and at least part of the penetrator are encased by the jacket, where the slug is positioned between the base of the jacket and the proximal end of the penetrator. The proximal end of the penetrator overlaps axially and mates with the distal end of the slug. In one example, a frustoconical end of the penetrator is received in and mates with a frustoconical recess in the distal end of the slug or the jacket as the case may be.

Abstract: Pellets which are formed by extruding and cutting may be squashed in the latter operation. Squashing is reduced by passing a strand of extruded material downwardly under the influence of gravity and cutting the strand horizontally with a blade, preferably supporting the strand against the cutting blade by blowing gas against it when cutting.

Abstract: A fibre and method of making the fibre. The fibre consists at least in part of a cationic amino-formaldehyde resin and may also include a carrier material which is a water-soluble fibre-forming polymer.Fibres can be made by a wet-spinning method. An aqueous solution of the resin is mixed with an aqueous solution of polyvinyl alcohol to form a spinning solution and the spinning solution is extruded into a coagulation bath to form a fibre, which is dried and cured.The cationic amino-formaldehyde resin comprises the reaction product of a triazine, optionally urea, and formaldehyde and a compound, such as di- or tri-ethanolamine to render the resin cationic. It may be mixed with another cationic amino-formaldehyde resin, e.g. a cationic urea-formaldehyde resin, in the making of the fibre.