Seems like something didn't come out quite right.

Model 67 4"
4.0gr TiteGroup, 158gr Rainier FP - 689 fps

Cimarron 1866 19" Yellowboy
4.0gr TiteGroup, 158gr Rainier FP #1 - 864 fps
4.0gr TiteGroup, 158gr Rainier FP #2 - 862 fps

260 Remington:
43.8gr N550, 123gr Scenar - 3039 fps

Mike