Small and large-bore rifle shooters love this powder for its exceptional performance in cartridges like the .222 Remington, .221 Fireball, .45-70, .450 Marlin, and the 7.62 x 39. This smooth-flowing powder isn’t affected by temperature extremes.
Brownells Christmas , Issue:5X, Page:018
Big Book Catalog, Issue:68, Page:545
Sinclair, Issue:5B, Page:093