I don't shoot the PRC but in both my .260's and 6.5LRM I stick to the 123gr peregrine solids or 160-140gr conventional bullets, mostly shooting the Hornady Interlock.
If you don't mind blowing them up the SST and AMAX work very well.
Gory as it sounds I've cut a lot of them almost completely in half with the STW's and 6.5 LRM shooting the lighter varmint/target bullets and I just don't like seeing that.
I wand them dead, I don't however like to see them splattered all over like a giant prairie dog.