Coolray (and other TiteGroup users),
T-Group was designed specifically for light ("Cowboy") loads in big straight-wall revolver cases, like the 45 Colt.
Works, like Bullseye or AA2, in most any cartridge, but falls in the "fast" burn-rate range.
NOT ideal for most applications.
Suggest other powders than T-Group for most every cartridge and/or application (but T-Group works very well in light 44 Mag/ 45 Colt loads).
Best all-around 45ACP powder (except +P-range): W231
Best 9mm powder: WAP
Best 44 Special powder: Universal Clays (the modern easy-metering clean-burning ballistically-identical alternative to Unique)
Just my experience.....
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"all my ammo is mostly retired factory ammo"
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