Has anyone interested in this actually called Alliant? Sounds like a good way to figure it out to me...
Yes I have and the Tech Support guys answer was Uh, I think Speer is giving us the data now. So I asked him if the powder (RL15) had been changed at all since the last manual and he stated that it had not been changed. I also asked what method of presssure testing had been done and if that had been changed and he stated he did not know. Now I asked him what the maximum pressuer of the loads for the 35 Whelen in the new manual were and he stated he did not know. That ended the call.
As an aside I have just built a Whelen with a 20 inch tube that will just break 2500 fps at 59.5 Gr RL 15 with a Hornady 250 Gr round nose with sub .75 inch groups at 100 yds with no pressure signs. I have not, however, had time to test loads with any other bullet. BTW in my rifle 54 Gr RL 15 pushes the same bullet to 2190 fps.
I tried with alliant but still don't have any answers. Good luck guys. Bear
