Could be...
Shotgun: Multipower, 50-point reserve, 4 clips of 8 Charges (-0) (50 Active Points); OAF (-1)
Blast 10d6 (50 Active Points); 8 Charges (-1/2)
Blast 5d6, Area Of Effect (4m Radius; +1/4), Attack Versus Alternate Defense (ED; All Or Nothing; LS: Self Contained ; +1/2) (44 Active Points); 8 Charges (-1/2)
Blast 8d6, Armor Piercing (+1/4) (50 Active Points); 8 Charges (-1/2)
Blast 8d6, Area Of Effect (32m Cone Explosion; +1/4) (50 Active Points); 8 Charges (-1/2)
oops, you are using 5th. the numbers will be off