Some .270's won't do well with 130's at all...had one and it liked 140's and 150's much better.

My 15" .270 Encore however, wouldn't shoot anything BUT 130's.......

Play around up near max and see if you can get a one grain range of charges to hit the same point of impact, load the middle weight as your charge. tweak the seating depth up and down to tighten groups. You'll have the sweetspot........