OK, so as I wait arrival of my new Izhmash Bi 7-4 rifle, I'm trying to get an
understanding
about which ammunition to use. I see several brands have a "biathlon" ammo. Is
this
special for cold weather conditions or just marketing hype? I have read that
rifles may have
different results with different brands of ammo. Will results vary from brand to
brand
(Izhmash vs. Anschutz) or from rifle to rifle, even of the same make and model?