While helping a friend with his ML, I tried some 40 cal saboted loads in my H&R conversion. I got this load off dougs
1st shot: 200SST, HLBLU sabot, 10/50 4759/4198 2654fps
2nd shot: 195 barnes, HLBLU sabot, 10/50 4759/4198 1925fps
3rd shot: 195 barnes, HLBLU sabot, 10/50 4759/4198 2460fps
4th shot: 200SST, HLBLU sabot, 10/50 4759/4198 2649fps

The first and fourth shots were touching but the second and third totally missed the 3'x3' target and the velocity was all over the place. After firing, all sabots were in good shape. All charges were weighed the evening before. The barnes load easier but still plenty tight. I thought I would try the barnes after DA posted his groups from a handi conversion. I plan to revisit these loads after the season is over.
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She told me if I go hunting one more time she's gonna leave me......I'm gonna miss her...