I use H-110 with WSP-M primers for 125 Gr Hornady XTP bullets with no problems in my 6" DW 15-2. My suggestion is a firm crimp, even if the bullet is not creeping that's only one function of the crimp so a bit more may help increase the pull to the point where you get better ignition. I'm using 20.0 Gr for a measured 1375 FPS from that 6"BBL FYI, not some factory inflated read from some specialty 16"BBL fitted to a universal receiver.
To give you an idea this is a loaded round showing the crimp I use.
I do get some smudge, but no more than I get with factory loads.
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Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”?
Elderly Hunter: “That's dashed unsporting. Probably Belgium.”