i have just brought a sako 17 rem i am having some problems,
using n133 25gn vmax and berger 25gn too i made some rounds at 21.5gn just to get me started on a rough zero !
brought a new vortex viper 6x24 to 50 ! problems started when i got the gun zeroed the point of impact changed on both bullet through testing the barrel had got hot i think it may be this but my mate tells me that a hot barrel will throw them all over not change impact point. any ideas ?