My tang Ruger also loves 140 NPTs (and pretty much any other 140gr bullet).
54.5/H-205/2879fps. Accuracy runs around 1 MOA.
54.5/N-204/2856fps. A little less accurate in my rifle.
My Ruger has considerable freebore, so take that into consideration. Good luck on finding H-205, although a few weeks ago, someone was listing several pounds that he had for sale here on the fire.
