I am looking at buying my first Kestrel to use in long range 22 rimfire shooting. Which unit should I buy that will do what I need to do out to 400 yds +_? Everyone seems to advise the 5700 Elite but, can the Hor 4dof do it as well? Is Hornady just for Hornady bullets or can you import any bullet you want? I'm also a believer in by once/cry once but no need to have too much overkill and I don't expect I will ever compete in the CF world anymore.