I found this on the 3 gun nation web site. This is LAW or will southern Utah shooting club have diferant requirements?
4.0 AMMUNITION 4.1 Tracer, incendiary, armor piercing, steel jacketed or steel/tungsten core and steel shot ammunition are specifically not allowed and are prohibited. (Rule 4.1.1, 4.4) 4.1.1 A competitor found in violation of Rule 4.1 shall be assessed a $100 fee for each steel target damaged. Fines will be made payable the day of the offense. (Rule 3.9) 4.2 Pistol ammunition shall be 9mm or larger.
See section "7.0 FIREARM DIVISIONAL REQUIREMENTS" for specifics. 4.3 Rifle ammunition shall be .223 Remington (5.56 x 45 mm NATO) or larger. Pistol and rifle cartridges must fire a single projectile only. (Rule 2.9) 4.4 Shotgun ammunition shall be 20 gauge or larger. Birdshot shall be #6 Lead Shot or smaller. Rifled Slugs or 00 Buckshot (8 or 9 pellet only) may also be required. Use of steel shot is forbidden and is considered a Safety Violation and will result in a match DQ. (Rule 2.10, 4.1)