I did not realize that Nosler was making the solid base in anything less than 6mm. I may try them, but the gun did not like the flat base Sierra 40 grain hollow point. I have about concluded that it does not like the 40s in any way shape or form.
Looking at the ballistics, I don't think the 40s are enough better than the 50s to matter anyway for the average shooter and the 50s will perform better on coyotes.
Ditchdigger. It sounds like you have had even more frustrations than I have. So far, this gun shoots Hornady 50 spire points, Sierra 53 hollowpoints, and 55 Sierra spitzers pretty well. The Hornady 50s performed well with all powder tried-Varget, IMR4198, and BLC2. The 53 Sierras were also good all around. The 55 grainers seemed to prefer 27 grains of Varget to any IMR4198 load, but also liked the BLC2 in spite of the 2800+ velocity.
Just for fun, I tried the 27 grains of Varget behind the 55 grain Sierra and used mag primers. The groups were not as good and the velocity had much worse variation.
I think that I am going to settle on the 50 grain spire points and then start tweaking the load. I am going to try it with H322 just to see how much of a difference it is from Varget. I really like the Varget, though, as it is super in my .243 with 65 grain V-Max, and my Rem. Model 600 .308. This allows me to cut down on how many powders I have laying around.
Has anyone compared the velocity in these rifles using Varget and H322?