well i havent actually timed myself, ashamed to admit. and i wouldnt trust my counting in my head 'one thousand one, one thousand two, etc' as i'm shooting. so when i drag someone out with me, i'll make sure we have a stop watch and time from the first shot to the fifth trigger pull.
the whole thing is a matter of timing. time yourself while you dryfire, and figure that you gotta add a few tenths of a second between each shot, maybe as much as a half second between shots.
next time i'll get to a range will probably be the ninth. will be shooting at paper targets though, not propane tanks.
"Every man alone is sincere; at the entrance of a second person hypocrisy begins." - Ralph Waldo Emerson
"People demand freedom of speech as a compensation for the freedom of thought which they seldom use." - Soren Kierkegaard