Finally got the barrel warm. Took long enough, I loaded some run in/sighting roands, 23gr of 8208 and 55gr vmaxs. Don't really know about run in processes, I like to think of it as conditioning, so I just shot 2, one pass with a brush and hoppe's #9 shot 2 etc. Until I had shot 8, then let a 6 shot group fly shooting every 20 seconds, the group is the top left. First shot cold and clean was top right, second shot was bottom right and the vertical string was the remaining 4 shots.
Pretty happy considering the loads were just a made up low weight thrown from the powder thrower so it probably varied up to .2 of a grain either way, and I shot it out of the Ute window, I did cheat but, I had a rear bag on the window sil
let's see what happens when I get some decent bullets running through it.