APS Primer Strips are color-coded to prevent confusion and misidentifica-tion. To minimize the number of colored primer strips, we not only used the various colors for designating primer type but also for primer size. For example, there are two white primer strips; one for large pistol primers and one for small pistol primers.
White Primer Strip: #300 Large Pistol, Standard #500 Small Pistol, Standard
Red Primer Strip: #350 Large Pistol, Magnum #550 Small Pistol, Magnum
Yellow Primer Strip: #200 Large Rifle, Standard #400 Small Rifle, Standard
Blue Primer Strip: #250 Large Rifle, Magnum #450 Small Rifle, Magnum
Black Primer Strip: #BR2 Large Rifle, Benchrest #BR4 Small Rifle, Benchrest
Orange Primer Strip: #34 7.62mm (Military) #41 5.56mm (Military)