Yes, I bought H414 when it was about the only powder available and have been happy with it in my 260 with 100 and 120 TTSX's.
Actually found some H4350 later and ran some tests of both. H414 provided a bit more velocity, a bit lower ES and SD, and also slightly milder recoil.
It is somewhat more temperature sensitive, but I still prefer it over the H4350 at this point.
Professionally trained and certified pistol and license to carry instructor.