I am about done with this one. Went to the range today and tested 84 and 85 grains of RL-22 and 168TTSX seated at 3.615". The 84 grain load averaged 3227 FPS at 15' from the muzzle. I did not hold onto the forend and that was a mistake. My three shot group was a diagonal string almost 2" long.
I held onto the forend for the 85 grain load and got an .8" three shot group. The first round in the string clocked 3264 FPS which is what I expected. The last two went about 3212 which was puzzling until I noticed that the shadow from a tree had moved off the Chrony. I can check velocities again when I tweak the zero.
Playing with overall length might improve the groups a little but what I have now will kill an elk at any range I will shoot. This is the easiest rifle to get to shoot that I have worked with in a long time.
