The load for the 6.5RUMLN is 102.5 grains of US869 sparked by Federal 215 Magnum primers pushing Scenar 123 grain bullet. The case holds 109 grains of water to the top of the neck.
While ago I took six rounds to the range and two rifles chambered in the new wildcat. It is a .338 RUM capacity case on a 7RUM case resulting in a .350" length neck. One rifle uses a 26" Christensen Arms barrel and ran 3,720 feet per second. The other runs a 28" Lilja and averaged 3,816 feet per second. It's a start.
