When I saw that butterscotch colored bowling ball of 8" shoot out of Tracy 11" mortar 3 years ago in Mt. I was a believer . The ball had orbited the earth at least once and reentered the atmosphere only two miles from point of launch  

 ! 
AND as it just sat in the mortar on the chambers rim so it did this on Blast Effect alone  

 . 
But everybody knows that ......... 
 
  Noone saw that ball in the air , it went BANG and the ball was gone ! 
I'll bet a bowling ball chambered howie would shoot Ft pallet to be gone like a butterscotch bowling ball . Yep "thats just the ticket". 
Ode to the butterscotch bowling ball . 
Gary