The other good thing is that you can buy some good clean new brass and load it at about 80% max power(softer target type load) and get 15-20 reloads out of the set.

http://www.lapua.com/index.php?id=852
Their 7.62x53 brass works(fraction of a MM different, first time firing it will resize it perfectly anyways to your chamber)l.  New, clean, and works.  100 rounds will run you about $40, which isn't SO unreasonable, really.  Norma also makes the brass, IIRC.

Oh - interesting note, that.  The original specs for the bullet were 7.62X53.5 - the Swedish government rounded down, the Russians rounded up.  Same thing as far as the brass is concerned.