I have never shot the 240gr PT's so no info there.

Might want to try a different bullet combo to see if it groups better? Maybe a 250gr SST, they are normally an accurate bullet but then again so are the PT's. Are you compressing the bullet on the charge the same each time? Flash hole decarboned with a 5/32 drill bit by hand lately? I take the vent liner out after each range session and run a 5/32 bit the whole way through.

Could you pull the Leupold off and put it on a different gun that you know shoots great? Would rule the scope out. Another option is to drop back to 50yds and strive for a cloverleaf which should be achieveable with your set up.

Just a few thoughts off the top of my head.

Just saw the targets. The one 120gr group looks pretty good.