Just purchased a 280AI in a Cooper Excaliber. 24 tube with a 1-10twist. Will it stabilize 168gr SMK's or not probable? If not what bullet would you recommend for long range target shooting. Not competition just shooting metal plates at 1000-1200yds.. Scope choice is either a nightforce 3.5-15x50 or 5.5-22x50 With the NPR2 reticule although a possible mildot maybe a option.