WEll I did some more fireforming yesterday and figured I would post up a pic of the 500yd plate after two shots on it with the 169.5gr Wildcats sitting on top of 98grs of 872. The velocity was clocked at 3385 for one round and 3373 for the second.
I really like the way they left nice deep 3/8" craters, with the metal rolled out on the edges.
The wider craters around them are from my buds, 300 RUM, the 185 Bergers and 210gr Bergers. The deep one, directly over the two 169.5's, is from a 150gr Nosler Solid Base I shot right before we touched up the plate.