Hiya Guys, I am from the UK and have just taken up rifle shooting. I have purchased a few rifles for shooting on my local far. .22lr CZ .17hmr CZ .243 Tikka Super varmint with Nightforce NXS 5.5-22 x 56 Scope. I shoot varmint (Rabbits and Foxes) at my local farm at ranges up to 300yds which is really the maximum safe shooting range, but I would really like to go to the USA and learn at a shooting school or hunting vacation center how to become a better long range hunter. Can you offer any advice on such a good vacation venue with a good reputation. Also, the Tikka super varmint is an out of the box rifle and is currently shooting about 1" groups at 100yds. is this about right or should I make adjustments to the ammo or rifle. Can you make suggestions as to the best ammo for this rifle? The rifle has a 1 in 10 twist.