After shooting ISSF air rifle and smallbore competitevely since 2001, and dipping my toe in F Class last year, I decieded to build an affordable .223 Rem 300m ISSF rifle. It is supposed to be affordable with affordable amunition for a casual shooter. I'm building a T3x Tikka in a custom stock with Walther sights. According to ballistic calculator with 80gr Sierra @2800fps I will be giving up around an inch of wind drift in 4m/s (10mph) wind compared to factory 6mm BR Lapua. It doesn't seem too bad... Will see if it shoots
Michal