Standard caveats. Don’t try this at home. It worked in my gun this time. Don’t know if it’ll work in yours.
At this time there is no loading data available for 30 Super Carry. But that doesn’t matter because I used a surplus powder that is not listed loading manuals. It is very close AA#5. It is not BR5. I worked up to a charge of 5.5 grains. The primers looked very much like full throttle 357 loads but not as flat as 220 Swift loads.
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The boolit I used was Accurate 31-117E cast 96% Pb, 2% Sb and 2% Sn, air cooled, aged 1 week, lubed with Felix lube, sized 0.316”.
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I chronographed all the loads today at 97 degrees F. Yep a hot day in May in Central Texas. 5 shot strings.
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My final load of 5.5 of a surplus #5 type powder, 117 grain boolit gave 1153 fps, sdev 6, hi 1161, lo 1146, es 15 fps.
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I fired the hand load into a row of 10, 1-gallon water jugs. The first jug was shredded, the second ripped, the third just holed both sides, the fourth caught the boolit. The fifth jug was hit hard enough to pop the sealed top from the jug. The boolit expanded from the 0.304” nose OD to 0.430-0.440”.
Attachment 300433
The 50k psi pressure 30 Super Carry can run does allow it to punch above its weight.