I have a Remington Lv Sf in 22-250(22" TUBE,1:14 twist) and need load data. Getting an average 1 3/4" group @100yds with several different loads tried with little success in tightening the groups. Tried 50gr V-Max with Varget/ IMR 4350 and 55gr Sierra BTHP and Varget/ IMR 4350.Tried CCI Mag and WLR primers. Any suggestions besides selling?