I am looking at an Italian hammer gun, to maybe purchase. The gun is in almost new condition, a 2001 gun. The shop gunsmith emailed that each barrel measured .631. The right barrel has .010 constriction,the left barrel .020. ( Imp/Mod)
Isn't the bore diameter of a 20g .615 , or is this within acceptable parameters ?
Thanks, terc

Last edited by terc; 08/06/13 07:27 AM.