K38 Target Masterpiece Barrel Weights

[JDBoardman]

I am looking in to adding weights to the barrel of my 6" K38 Target Masterpiece (1954 vintage). Does anyone know if there are (or were) any commercial add-on weights, or is this something I will need to devise for myself? I don't even know for sure that they will help, but I'd like to try adding weight and see if it stabilizes the barrel. After all, old age and treachery beats youth and skill...

[WilsonFlyer]

Wrong forum, maybe? {shrugs}