Ramshot TAC is a medium-burning spherical powder primarily used for loading .223 Remington cartridges for use in the AR platform. It also works well in .308 Winchester. Spherical powders are also commonly referred to a “ball powders”, with Winchester having that labeling as a registered trademark.
As a spherical powder, it will flow out of powder dispensers and through small case necks very well. For people and manufacturers who need to produce a lot of ammunition, spherical powders are the standard. Essentially all non-premium factory ammunition in rifle cartridges use spherical powders.
The market for medium-burning spherical powders is loaded with good choices. I haven’t come anywhere near using all of them, and I doubt many people have. I like Ramshot TAC specifically because it is useful for a wide range of bullet weights in .223 Remington and Ramshot publishes 5.56x45mm load data for it.
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Another reason Ramshot TAC is popular with .223 Remington reloaders is its efficiency with 55-grain bullets. For me, those make up 90 plus of my reloads. Budget 55-grain bullets, which aren’t that good at long ranges anyway, don’t need to chase top velocities. When a powder recipe starts asking for a 28 grains charge at .223 Remington pressures, it’s getting on the slow side.
Ramshot TAC isn’t too fast for good performance with the heavier 75 and 77-grain bullets either, though I generally don’t load the more expensive bullets with spherical powders. In all my time reloading, I have gotten better accuracy results with extruded powders. But for close-range practice ammo, I’d rather use spherical powders that are very easy to work with during the reloading process.
There is usually some savings to be had by using spherical powders over extruded types, but the real benefit is time and hassle saved while reloading.

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