Having a hard time getting Berger 80.5 full bore to shoot

I have a Savage 12 barrel 30" with 1/7 twist on a Savage right bolt left port single shot action with a target accu trigger with red blade.. I am having a hard time finding an accurate load for it with Berger 80.5's and Varget. I have loaded 20 off the lands with 24.4, 24.5, 24.6, 24.7 and 24.8 of Varget, At 24.7 I get a nice round group but not very small. What should I try to shrink the group size?
Does this bullet like more jump or closer to the lands?
I forgot to add this barrel has about 500 rounds through it.

Drop back to 24 grs, and set it for touch. If the group goes vertical add more powder. If the
group goes horizontal, go in .003 at a time until it comes together. If none of the above works,
Varget may be the problem. How is the case fill, and are you using a chrono ??

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Originally Posted by Fuj'

Drop back to 24 grs, and set it for touch. If the group goes vertical add more powder. If the
group goes horizontal, go in .003 at a time until it comes together. If none of the above works,
Varget may be the problem. How is the case fill, and are you using a chrono ??

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Yes I did chrono 24.5 varget gave me 2818 velocity, case was not full. 1.988 is 20 off hard jam.