Ive got a club of a 30" 260AI barrel right now trying to match the 6.5-284. I have been wanting to try some 130gr bullets for awhile with H4350, if i remember correct, crunching the numbers for the 260AI a 130gr VLD should shoot flatter and a bit less wind drift from the increased velocity than 140gr VLD until around 600 or 700 yards. I shot the Nosler CCs, theyre fine but the VLDs are a sleeker tangent design and you will see flatter shots at range.
284 is a good bump up in case capacity, I dont know exactly what powders to suggest but H4831sc should have a safe load for 130s, H4350 burns a bit faster maybe thats good for the 130s, maybe thats bad for the big case. There should be load data out there, like alf said, those were common until 6.5 creed started.