I have seen 380 loading data with a 115 grn bullet only in 1 or 2 manuals, maybe Lee, I forget. I think you would be better off getting some 100 grn bullets to use in both rather than going with the 115 in the 380. There may be a reason why you don't see much data on the 115 grn bullet in the 380?
Not saying you couldn't gin up a load & 'make it work'. If so your fps would be on the low side, with standard pressures.
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