Made it out to the range today and was able to shoot my test loads. I only shot 3 rounds of each charge, and my eyes have a hard time with the standard rear buckhorn sight, so the accuracy numbers may be statistically insignificant, but I was very happy with the results of both 3031 and LeverRevolution.
3031, Winchester once-fired, WLR primers, Hornady 150RN bullets. Shot at 50 yards, 20" barrel.
28.0gn, 2010.3fps, 29.8sd, 1.5"
28.5gn, 2018.0fps, 29.1sd, 1.2"
29.0gn, 2045.3fps, 16.9sd, 2.5"
29.5gn, 2056.3fps, 17.1sd, 2.0"
30.0gn, 2079.7fps, 12.0sd, 1.1"
30.5gn, 2125.7fps, 27.1sd, 3.1"
LeverRevolution, FC once-fired, WLR primers, Hornady 150RN bullets. Shot at 50 yards, 20" barrel.
33.0gn, 2135.7fps, 28.1sd, 2.1"
33.7gn, 2212.7fps, 9.5sd 2.25"
34.4gn, 2214.3fps, 7.2sd, 1.3"
35.1gn, 2259.3fps, 8.4sd, 1.7"
35.8gn, 2324.3fps, 24.6sd, 2.1"
36.5gn, 2373.3fps, 18.8sd, 3.7"
There were no pressure signs at all, and actually there was indication of low pressure with the LVR loads. I was cautiously low with those, so I think I may work up some higher loads. I think there may be another accuracy node hiding up there.
Can't say that I prefer one headstamp over the other, they both looked fine after firing. I will take a closer look with my case headspace gauge and see how much they stretched.
The real fun started later when I shot my new Rossi 20" 44mag, but that belongs in another thread. I will say that I was getting very close to the same muzzle energy (1600 ft/lbs) with the 44 that I was getting with the 30-30. My shoulder will be sore in the morning.