hi guys need some help i have a sako trg-22 in 308 and was wondering is is it capable of shooting up to a 1000 yards and if so what weight bullet and powder would i need to reach that distance. i use at the moment hornaday amax 168 grn bullets and 42 grns of vhitavorie n140 which is very accurate at 200 yards.would be greatful for any help?