Steve, I've gotta question your recommendation of H4227 in a 38 Spcl. That powder is even slower than 2400 and is designed more for small capacity rifle cases and some magnum handgun cases, e.g., .44 Mag and .357 Mag. I've never seen it recommended for a .38 Spcl.
In gmeister's 2 inch snubby, which is what we are discussing here, a large percentage of it is going to burn (or not burn) outside of the barrel. Perhaps when shooting .38's in a .357 carbine that would be a good choice of powder.
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