Home Forums Hunting & Shooting Hunting Rifles Strange 7x57 groups.

This rifle has been a bit fussy with powders. Will not shoot anything with 760 or IMR4350. Have had some good results with Seafire's 3031 loads and 160gr NPs so will pursue that some more.

Shot these 4 shot groups this morning in my 257Rigby (7x57). Two distinctive groups at each set. Other loads have not shown this pattern.

Question?? ....... What would you suggest to improve these promising loads.