I never take a clean barrel hunting it always has at least 1 to 3 fouling shots so for me cold yes clean no.
Put a target out to25 yards. Set your rifle up on some sandbags. Remove the bolt. Look down the bore from behind and move the rifle until the centre of the target is centred in the bore. Making sure not to bump the rifle, look through the scope to see where the crosshairs are. Adjust the scope until the crosshairs are centred on the target too. Fire the first shot at 25 yards. Good luck.
After you are on the paper by manually bore sighting it( looking through the barrel as everyone mentioned) do what Super said. After your shot, make sure not to move the rifle, and adjust the elevation and windage until the crosshairs are exactly centered on the bullet hole where the shot you just fired hit. Now shoot again aiming at the bullseye.You should be right on target. If you did this at 50 yards, now do the same thing at 100yards, and you should only have minor adjustments.
Another methiod I heard of is to sand bag you gun up and get ti good and secure, remove the bolt and insert a empty shell with the primer removed. this gives you a smaller hole to aim throught making it more accurate. and just do all the other steps from the other people.
And that is interesting indeed. I'll have to give it a try next time.Another methiod I heard of is to sand bag you gun up and get ti good and secure, remove the bolt and insert a empty shell with the primer removed. this gives you a smaller hole to aim throught making it more accurate. and just do all the other steps from the other people.