Looks like you have it headed your way.Richard
somebody with a mill could clean that weld up a whole bunch
Too many ideas, not enough money, no access to proper tools
Interesting how the velocity seems to increase snd decrease in an almost rhythmic pattern as you shortened the barrel.... faster, then slower, then faster, then slower again.... and then finally dropping at about 9".... Although the variation in velocity wasn't huge, it was an interesting phenomenon....Bob
Thanks for the effort you took here.That adresses some of the questions I currently asked myself - also the outcome was not as plain as one might wish.