I've had very good accuracy out of the Winchester Supreme line, with the Ballistic Silvertips, Accu-Bonds, and the old Fail-Safe loads if you can find them, in the bolt action rifles I've had. The 180gr Accu-Bonds grouped 10 shots under an inch consistently, with my best right around 1/2", in a Remington 700 BDL (that gun was flawed in other ways that over-ruled that kind of accuracy). A lot of people I know use the 168gr Ballistic Silvertips in their rifles, and it's an absolute killer on whitetails. All of their rifles shoot an inch or under with them too.
I currently have a 7400 myself (10 year old), and the Hornady 150gr SST's will shoot under an inch at 100 yds with regularity. If they don't get in at an inch or less, it's my shooting, not the gun or ammo (although there seems to be an issue right now that has me puzzled, but that's another story). The 180gr SST's shoot good too, not as well as the 150's, but it usually stays under 2" with them.
The Remington 165gr Core-Lokts shoot pretty well too, I end up going back and forth between them and the SST's. That's the only Remington ammo that shoots well in it, every other load I've tried goes at least 2" and up to 3" groups. To be honest, I haven't had very good success with any of the Remington loads in any of my rifles, other than the 7400 and the 165's.
The old Winchester 180gr Fail-Safe load also shot under an inch for me, but you can't hardly find them anymore and they're a bit stout for deer anyway. I still have 10 rds stashed away in case I ever get the chance to use the 7400 on a boar or black bear. I'd like to get some of the 150gr Failsafes to shoot and see how they do, but that'll never happen.
Oddly enough, the Failsafes are the only coated bullets that will shoot with any kind of accuracy my 7400. All of the other coated bullets group like buckshot out of 12ga. With the coatings, it's important that you clean the barrel down to bare steel before you shoot them, as they generally don't like any kind of copper fouling or other coating in the barrel.