44 Mag Subsonic

Yes I have. Data is weird to find above 240 grns but it is out there.

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Originally Posted by Moa Hunter

Greenhills formula (think that's the correct spelling) will give you the right twist rate for weight. Just remember 44 mag is actually 41 caliber not .44

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Actually bullet diameter is .429" for copper and .430" for lead

Quote:

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Originally Posted by Micky Duck

Yes I have. Data is weird to find above 240 grns but it is out there.

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No its not I sell heaps of 270HP