Have used TiteGroup for many years. Tried different powders and have gone back to TiteGroup for 9mm. Using a good light I have no problem seeing how much powder is in the case. Plus I use a powder check. Using a 650 press with the fail safe system it is almost impossible to get a double charge.
You want a dirty powder try REX.
Team Carver Custom
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EX AC-130 A/E/H Spector Gunship Gunner __________________________________________