I have one and it is a shooter. The load that worked best with mine was 85 gr FFFg T7, 250 gr Hornady XTP or SST, in a Harvester smooth black sabot. I used CCI #11 cap. The only problem I have had is you need to make sure the cap is fully seated or the first pull of the trigger will seat it and you will need to cycle the bolt again to fire it.
I tried the 209 conversion and it was a mess and I did not see any improvement, YMMV.
The factory trigger was a bit stiff, so I installed a Volquartsen set up which really improved it for me.