Sorry I haven't responded! Tend to miss the questions on the specific columns, because there usually aren't many after a week or two.

I have had the same experience with recent manufacturing lots of H4831SC, with both a total lack of "pressure signs" and low muzzle velocities. Consequently I've been pushing the published muzzle velocities by 100 fps or so, and usually get better accuracy as well.

But these days there are also other good powders for the .270 with 150-grain bullets, including Alliant Reloder 26, IMR 4955 and 7977, and Ramshot Magnum.


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John Steinbeck