Yep, there isn't an issue with H414 being "discontinued," because the only thing really being discontinued is containers with H414 labels. The same powder will continue to fill W760 containers.
I have had temperature adventures with H414/W760 as well, to the point I swore off using either in my standard hunting handloads, though I keep some around to use in handloading articles, since many people like 'em--and apparently don't hunt where temperatures vary widely.
But H414/W760 may be more temp-resistant now, since I haven't done any serious temperature testing with it in quite a while.
