Cast booklets size

[lonewolf5347]

Guys quick question I slug my bore at 0.3567
I wonder should I run plated at .0357
And lead at .0358 ?
Cal. 9 mm

[mdi]

I'd try both at .358"...( did you mean .357" and .358"?)

[fredj338]

I treat plated like lead, go bigger if it fits.

[jsizemore]

As long as the boolit is as big as the groove dimension, round and will obturate WHEN IT LEAVES THE CASE it will work. A thousandths or 2 over size compensates for defects.

[Wayne Smith]

Did you size with pure? Lot of guys state they are sizing with boolits - tin and antimony causes springback. When measuring to four digits this causes error, reading too large a size.