I'm looking for some advice to get better accuracy from hunting bullets for my build project. So far, the target bullets outperform the hunting bullets, so I’m looking for improve accuracy for the hunting rounds. My current setup is:

Stevens 200 Long Action
24" McGowen Stainless Match Grade Barrel (6.5X55) - 1X8 Twist
Timney Trigger
Bell Carlson Duramaxx Stock (not bedded)
Vortex Viper 6.5x20mm Scope

Primary use hunting, secondary use - long range/tactical

Results to date (after approx 50-75 rounds)

Nosler AccuBond Bullets 130gr (Various loads with H4350 or R19) = approx 1 1/16th group at 100 yards

Hornady Amax 120gr (R19 load) = approx 9/16 group at 100 yards

Lapua Scenar 123gr (H4350 or R19) = approx ¼ group at 100 yards

Any thoughts on other hunting bullets I should consider?