Hunting & Fishing Cold bore sight-in

[Early Cuyler]

Alright everybody, I've gone back and forth with my father on how long he should wait between shots so that when he sights in his rifle it will reflect a cold bore zero.

He's shooting a Weatherby Mark V Ultralight in 300 WbyMag. He will be sighting it in in Alabama but will be using it in Idaho on elk hunts in October. My thinking is to wait 5-10 minutes between shots to let the barrel cool down as much as reasonably possible. To me this seems like it is the best and most time efficient way to get the gun's initial conditions close to those he'll encounter in Idaho (Other than shooting out of a fridge/freezer). He thinks 3 minutes will be enough to let the barrel cool down. I call shenanigans.

Anyway, how long do you think he should wait between shots? Thanks for the help as always

 

[KNIGHT11B4]

Re: Cold bore sight-in

Just shoot it.

 

[Killswitch Engage]

Re: Cold bore sight-in

you can zero shit all you want but you cant eliminate a cold shooter. thats more of a concern to me.

i would go once a day for a week and fire one round cold bore/cold shooter then you will have a zero. my .02

 

[Early Cuyler]

Re: Cold bore sight-in

The range is 30 miles away and time off is rare so the one day a week won't do.

If I "just shoot it" won't the zero be different from a cold bore and a warm bore?

What I'm trying to do is to replicate conditions as close as reasonably possible. Which means a cold bore shot.

 

[KNIGHT11B4]

Re: Cold bore sight-in

Depending upon conditions your zero will shift anyway. Just go to the range and zero it. Try to confirm zero once you are at the hunt location.

Dont go into a cyclic rate of fire and melt the barrel, but there is no need to wait 12 hours between shots.

As KSE said, you need to worry more about the shooter than the rifle acting the same.

Just shoot it.

 

[bowslngr]

Re: Cold bore sight-in

Just zero it. ...and think about how to overcome the real problem: his POI is likely to shift more significantly due to the change in weather (much colder) than it is due to hot bore vs. cold bore. Especially true since it is a lightweight rifle.