TiteGroup is not a "bad" powder but it is very dangerous to handloaders who get distracted. A shooting buddy who is a very successful owner of his own business purchased one of the first S&W 627 8-shooters. He loaded his ammo with Titegroup and somehow managed to load a double charge(Dillon 650). He was shooting a local IPSC-style match when the whole top of his cylinder plus the top strap blew sky-high. No injuries occurred except to pride. None of the pieces were found even though many of us searched. My friend went home and pulled 21 bullets out of his ammo and all weighed correctly. He talked to S&W and argued it was metallurgical failure. They said "NOT"! and refused to even sell him a 627 but did offer him a 625 at dealer cost. I personally have no doubt he loaded a double charge. The point is a mistake like that with TiteGroup will destroy your gun!

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Bob.
SWCA 1821