next half hour wasn't very photogenic, but
here's what the pile of brass looked like
at the end of the shoot.
I cleaned the barrel after each 5 shot group
with a wet patch and then a dry patch.
After three groups, I put a wet patch through
the barrel, ran a wet brush down it 6 times,
wet patched it and then finished with 2
Maybe excessive, but I didn't want fouling
to play any part.