Does anyone have a handle on the savings for reloading 243 WSSM rounds?

Typical prices for 20 rounds are:

100gr - $19
55gr ballistic - $27
95gr ballistic - $26

Also, the ballistic tip rounds come in nickel plated (or something like that ) brass, while the 100gr come in regular brass.

Any problem reloading the ballistics in the regualr brass or vice versa?