I may get a chance to try WC-872, thanks to some help from a friend.
The problem will be finding the right load without exceeding SAAMI pressure limits, as there aren't pressure data available, like with US-869. And, if WC-872 is a one time offering of a surplus take down powder, not an ongoing manufactured product, pressure testing in the 26 Nosler may never happen.
And what you observed in the .264 WM may not correspond to what's happening in the 26 Nosler case, although comparative data with US-869 may be helpful.
I'm game to try it. As it's slower than US-869, I may start with US-869 entry loads while watching the chrono and cases.
I have Norma 217, Retumbo, Mag Pro, RL-33, Magnum and other slow burners that may or may not pan out. Some of those weren't impressive in the Nosler data.
DF
