I've had good results with RCBS.
The WSSM's take a lot of sizing; that is to say that the extra thick brass case is a bit hard to bring back down to SAAMI specs and sometimes require a bit of cam-over of press handle to get them to chamber.
Whatever die set you choose, adjust sizing die per instructions, size a case that has been fired in your rifle and try to chamber that (empty) case. If it chambers easily, you're good to go, but if it does not, you will need to screw die down a bit tighter and size again. Repeat until round chambers properly.
Regards,
hm