Here is simple outline of what we did-

Made super strong 12ga long brass case to
take heavy slug loads...10,000 ft lbs energy real easy

Made heavy barreled strong 12ga guns to shoot them,
by using heavy barrels, beefing up actions, adding weight,.

Researched how to use regular strong guns with brass
and plastic cases to get twice the power out of a 12ga.
Using 2.75", 3' , 3.5" chambers.

Found heatreated hardened slugs that will take the speed and
deliver the power to the target.

And now designing falling block action for big case.Ed