Chapter 5 · Competitor Equipment · p.34
5.5Ammunition and Related Equipment
Magazines and speed loading devices must comply with the provisions of the relevant Division.
Spare magazines, speed loading devices or ammunition dropped or discarded by a competitor after the start signal may be retrieved, however, their retrieval is, at all times, subject to all safety rules.
Metal piercing, steel core, incendiary, and/or tracer ammunition, as well as ammunition loaded with steel-jacketed projectiles is prohibited at USPSA matches. Steel case ammunition is allowed, provided the projectile does not stick to a magnet. (See Rule 10.5.15)
All ammunition used by a competitor must satisfy the requirements of the relevant Division. (Appendix D)
Any ammunition deemed unsafe by a Range Officer must be immediately withdrawn from the match.
Ammunition must not more than one bullet or other scoring projectile from a single round.