Dan: The 300 WSM I played with a bit showed a prefernce for certain factory ammo, too,but shot very well with what it "liked".I find this to be pretty common with rifles that are well bedded and they show a preference.This is unlike my 270 which has shot everything well so far.
Your trigger does seem heavy.....have not seen that with any myself so far.
I'm thinking the issues I'm having with mine aren't full-fledged "problems" yet. I picked up a set of itty-bitty allen heads last night. I'll try to adjust the trigger tonight. I'll then put it back together and check all the screws and then see what happens.
