Ruger - It that the M77 .270 you are shooting? If so, I would suggest you try Nosler Ballistic Tips or Sierra Game Kings in the 130 gr weight. And you might want to try IMR4350 powder. This is a good powder for the 270. My pet load of 55 gr of IMR4350 under a Nosler BT is extremely accurate in my rifle and has worked well in quite a few others, give or take a grain or two.
And as soon as you can, get a qualified gunsmith to do a trigger job for you. My 77 trigger was horrible and the $25 I spent on a trigger job was well worth it.