Today I mainly wanted to test Carnuba Red lube, but included several other lubes just for comparison.
The usual load of 17.9 gr. WW296, 160 gr. plain base spitzer, oven treated WW, sized 0.360", winchester magnum small pistol primers, 1.840" COL. 27" Green Mountain barrel with very sloppy throat.
Procedure was to fire 3 seasoning rounds, followed by two 10-shot groups at 100 yards. I calculated the mean radius for each 10 shot group, then averaged the two. I only had enough cases to test two lubes at a time, then I had to pause to reload, so the barrel would cool completely down by the start of the next round of tests.
It was 15 degrees outside, but 50-ish inside the shooting shack.
First up, Fryxell lube, 50% moly lithium grease, 50% beeswax.
-- 1992 fps, 1.87% standard deviation (poor)
-- 3.53" MOA
-- 0.945" mean radius
Next, LBT Blue. I believe this is the "hard" version of blue.
-- 1987 fps, 1.19% standard deviation (not good)
-- 2.45" MOA
-- 0.82" mean radius
More to come .....