First we are running more pressure than regular shotshells
so we have heavier thicker barrels. Have heavy stock and pad. Mine and Rob's guns weigh 25 lbs. As for chamber we make
longer chamber reamers.Here is picture of bmg cases with
original rim turned down and threaded for the 12 gauge
size rims shown.Screwed on and loctited does the job.
Also in picture is 3 different slugs in our cases.Ed
