Of what you've listed, you can't go wrong with Varget & H4350, especially with 140 & 150's...........I don't like Varget's feed through a powder feeder so unless I have to use it, I don't.
I also use & love RL-15 with both 120's & 140 & 150's.
If a gun doesn't like one or all three of those, you have a problem gun.
MM
