49N, I just fit a really tight patch to a jag in on a good cleaning rod. Then I put a piece of tape around the rod so that the tag end of the tape is straight up when the patch is engaged in the rifling near the chamber. I push it forward being careful to allow the rod to twist as the rifling wants to rotate it until the tape has done a full rotation. I measure the distance the rod has moved forward to get the twist rate. Easier to do than to explain. I bet the 540 is way too heavy for an express load. 400 or less would be my guess. That 360 hollow point sounds about right. But I'm guessing a bit.

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BrentD, (Professor - just for Stan)

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