Unique was used for cast lead bullet loads in rifles, straight-wall pistol cases AND 1-1/8 Target and light field loads, Field and heavy Target loads, et. al., (pages 162-166 of "The Lyman Shotshell Reloading Handbook, 4th Edition) shotgun loads.And it still is a versatile powder, just not for low power trap loads. And, we are not talking about a versatile powder just for rifles, we are talking about handgun, shotgun, and rifles. One powder that does it all.
Don