so I have 338 win mag, unbreaked sako 85 which kicks rather stoutly when shot from bipods off a bench. So much so, that just by changing the loading of the bipod creates a 2 MOA vertical difference in impact. I use the weak hand to adjust the bag under the buttstock while getting anooyed by 3 inch high groups. Suppressor or muzzlebreak is not an option. How could I enhace my accuracy? Perhaps put the weak hand on the forend To prevent the gun jumping 10 inchrs up each time it is fired. I am a beginner and would welcome any technical advice. Thank you!