Ramshot True Blue Smokeless Handgun Powder (4 Lbs) is a double based, spherical powder that performs extremely well in most handgun cases. The load range for True Blue is currently from the .380 Auto to .454 Casull weights in progressive loaders. True Blue’s physical size contributes to excellent metering properties and consistency of charge weights when run through a progressive loader. True Blue’s high bulk density contributes to a fuller case capacity and more consistent loads. Grain shape is flat ball. Ideal Calibers: 9mm, .38 Special, .357 Mag, .45 ACP.