ill be receiving my savage model 12 6mmbr f class in a few days 1x8 twist factory barrel need some good loads using varget or rl15 have 105vld i shoot in brx have 107 smk cci450mag primers 205fedmatch if i use 107 do they like jump most shooting right now 100ydsn. also redding type s dies& brass bluebx. thanks for imput also what is the lightest bullet i could use an get accuracywith this twist shooter63.