As was suggested, the 24.5 IMR 4895 was the bomb. 5 shots went into 1.2", the fifth a called flier opened the group to 1.7", 5 shots at 100.
I was very impressed with that load with green tip SS109's
I only tried a couple of other powders, it was just too cold, the results are in my other post.
Gotta love the older powders, like us old guys, they still have the stuff.
Steve, I loaded some Tac also, just didn't get the chance to shoot it today. I'm going to wait for a nice balmy 35 degree day to try again and will try the Tac loads.