Hello Skeettx,

Yes that is probaby the best solution... if I live in USA.
Belive it or not, those inserts are considered by law "firearms parts" so you can not import them and if you bring them with you from USA, you commited a crime!
The option to make my own inserts is the best to make usable a fantastic shotgun that, besides the damage inside the barrels, are in really nice condition.
So, I still need to know, what steel to use (I know 4140 is the forum recomendation, but I can not find them here).

Jose M. Fernandez