Hello
I am new to casting. I've been reading and buying my equipment, doing everything I am suppose to be doing.
I have a Ruger Security Six .357 that I slugged twice. The result was a bore diameter of .355.
My mould is a Lee 358-158-RF and I'm dropping boolits that caliper out at .360-.361.
This tells me I need to resize to a smaller diameter. I would like to order a Lee Sizer but I don't know what caliber to order. The books I've read says to resize to .001 over the barrel diameter. That would be .356.
I am now confused, because in the past I've reloaded with store bought copper jackets in size .357. Conventional wisdom would mean .358 in lead cast.
Which size Lee Sizer should I order?
Please advise. Thank you.