@mbs357: Actually, this manga actually spans many decades as it was updated rather infrequently over the years, due to the author being so busy working on Kochikame.
Here's the cover dates from each of the magazines the chapters were serialized in (Chapter Numbers are taken from the order the chapters are published in the Tankoban)
After this, it went on a 10 year hiatus, until Kochikame ended and in the March 2017 issue of Jump SQ, the author brought this series back to being somewhat regularly serialized, with roughly 3 new chapters being released per-year. It's been ongoing ever since then.
1200 rounds, 12 magazines, 4 barrels is getting nuts. Then he doubles that insanity. Napoleon should just quit the foreplay and grab a minigun. That dude has got to be a cyborg. Clice in a bunny girl outfit is very cute!
@mbs357
Then the author ruined the whole affair about caseless ammunition by talking about the downwards ejection, but not mentioning that it's only for misfires / dud bullets, because caseless bullets by definition do not leave behind cases when fired.