I probably have provided too much information.

1) I mentioned the 357 loads only because all primers came from the same box (38 & 357). I felt this eliminated primers as a culprit.

2) So far, I have removed 50 bullets, weighed the powder charge of each on a beam type (Lyman O'Haus) scale. They ranged from 3.42 gr to 3.46 gr. Does not sound out of tolerance to me. Will do the remaining 50 as time permits.

3) Powder measure is a Lee disk type. Sometimes the "red dots" make it a bit harder to cycle.

4) Press is a Rock Chucker.

5) No unburned powder found in any of the fired cases.

6) The reason I suspect the cases is if the bullet is loose (only the crimp holding it), it would seem the powder does not have time to build up sufficient pressure before the bullet starts moving. Some chronographing a few months ago yielded an average muzzle velocity of 660 fps for these loads from the 642 and 638.

7)I'm going to reload about 20 rounds, making sure the bullet/case fit is tight, and fire them. Go from there.

8) Will keep pursuing this until I get it figured out. Once again ..... thanks for the replies ....... keep em' comin'.

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