Harold,
I'm happy this Drilling is not for sale,keeping and using it will honor your grandfather.Skeetx is right about using 2 1/2 inch shells and not the easily avaliable 2 3/4 inch shells.Since 3 inch shells are avaliable,some unknowing store clerk may try to sell you 2 3/4inch, as "short shells". He is also correct that cases can be made from 9.3x72R,but a little cheaper/easier solution is to use Starline original length 38-55 cases. They are a little short,but will lengthen in the sizing process.Also the 6.5x58R Sauer usually has a groove diameter less than regular 6.5mm bullets.It is easy enough to size .264" bullets to the diameter required(usually .260-.262").Some people just use 25 cal(.257")bullets instead.If they are accurate enough,they will be safe.I hope you enjoy this gun and leave it to your son,telling him about his greatgrandad.
Mike
