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If I did the math right according to the Hodgdon charts I have, if I up the load to 4.0 grains the velocity should be 1170. That will be a reasonable velocity to stop at.
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If it functions your gun OK and you like the load, should be fine. I think you'll be considerably below 1170 though, more likely somewhere between 1,000 and 1050 FPS. As example, Speers data shows:
115 Speer GDHP or TMJ RN
IMR 700-X
4.0 Grains
1007 FPS
Sierras data is very similar and closely parallels Speers. The plated bullets will present no problems at these velocities and IMO, can be pushed considerably harder without issue. Most problems with plated bullets shedding the jacket can be traced to over-crimping, "digging into" the plating. In my own use, I regularly use mid-level jacketed data with never a hint of any problem shooting plated in 9MM, .40 and .45 ACP.