I recently bought some Percision 147g moly and went with solo1000. I haven't seen any tumbling and shot them out of a g34,STI Trogan,sig239 as well as a g19. I do load mine a bit short at 1.125 but have had no issues. I have gone as low as 3.0g and up to 3.5g. 3.3 is what I went with although all were accurate at 30ft. As a side note I used my stock barrel in the 34 and after 150 rounds there was no sign of pressure and it seemed to be pretty clean for lead.
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