I currently own both. The Knight is a .45 and likes 200gr spire points over 110 gr of Pyro RS best. It will eat anything I've fed it with the right powder charge. Actually I own a new style Optima (not the Wolf) with the Bergara barrel. It likes 250gr spire points over 100gr of Pyro RS. With these 2 loads I'm splitting hairs for accuracy between the 2. The Knight shoots just a fuzz better. The Optima is my rifle of choice, only because the new style breech plug keeps it near spotless after many, many shots. The Knight has a lot of blow back thru the red discs, but I did an experiment and it was nearly all from the primer. The Knight with the current loading has a 25/175yd dead zero, the Optima, a few yards over 150. 150 is the farhtest I've shot it and it hit about 1 1/2" high with that load. I can hit a paper plate at 200 with the Knight and would bet money I could with the Optima with out any adjustments. Again, I use the Optima ONLY because it is so clean! Both will shoot 3/4MOA (1 small ragged hole with the Knight on a good day) at 100.