Blackhawk,
Thanks, that at least makes some sense. I might be able to tell myself that Reloader 15 would actually work better than the slower powders. But in actuality I think the main reason loads are not listed by Alliant is because it costs Alliant money to develop the loads. I suspect they just slapped up a few token Whelen loads then quit.
But the Whelen has some pretty heavy bullets available, some as heavy as 280 grains. I would think stepping down a notch from RL-15 would be a saavy choice.
I just know there's a good number of Whelen fans out there and thought maybe someone else has found something for RL-19 or 22.