i'm new at varminting and purchased a used 722 rem med weight 24" barrel in .244 and using 58 gr v-max bullets with a current charge of 44 gr of 4064, cci primer rem cases seated out to touch the lands.i consistently shoot.500 range 5 shot 100 yrd groups. is this a good start? i shoot coyotes in western Canada out to 600 yrds not to may gophers.is there a better known recipe i should try? thanks......