Its a Manufrance Ideal grade 3.Whether its worth fixing..........well my wallet or my wife will dedcide that.

Look all I want is to be able to shoot this occasionally at maybe when I go woodcock hunting(which is seldom)or quail. From the wall thickness numbers given and dent repaired(if repairable) and hand loads at what psi? I mean what is lowest I possibly could get by with? Dent is not close to hand or head.