What distance to start with a scope

[Butch]

I was told that when you put a scope on a rifle you should sight in at at 25 yds before goig to 100 yds. Is this true.

[5shot]

Yes and use a big target so you won't have any wasted "mystery" shots. If your scope has 1/4" clicks at 100 yards that will be 16 clicks for an inch of adjustment at 25 yards. Depending on your scope height and caliber of the rifle get it either on or maybe a little low at 25 yards before going to 100.

[BigAl52]

If you dont have a bore sighter then 5shot is right on. Start at 25. You can get laser bore sighters on Amazon fairly cheap if you do much scope or red dot mounting.

[GunnyGene]

Acceptable and common to 'get on paper' at that range, but be aware of parallax. Typically centerfire scopes will be set at 100yds for 0 parallax, and rimfire scopes at 50yds, so you'll need to know how to account for that. High end scopes will be adjustable for parallax so you can dial it in for the range you're shooting.

See this short video about parallax:

https://www.youtube.com/watch?v=1VPGcq9IVxc

[DsGrouse]

What Gunnygene said. You need to know the parallax of your scope. Some start at 10 meters or yards; some start at 100 meters/yards. 50 meters/yards is a very common parallax.

Learn to bore sight, and make proper adjustments to scopes. Also, look at your load data provided by the ammo manufacturer. That will tell you if the bullet is rising or falling.

For instance, it makes no sense to zero on a +2" gain at 25yds for a 400 yd zero when most of your shooting is at 50 yds.

[Mags]

I started at 50 yds with a laser bore sight. Then 50yd live fire tweak adjustments to finalize.

[.45Steel]

I always start at 25 yds.

[GunnyGene]

Speaking of scopes, I ran across this article today. Anybody do this?

https://www.thetruthaboutguns.com/scope ... -easy-way/

[GFK]

Zeroing a scope:

https://www.americanhunter.org/content/ ... o-a-rifle/

[Sir Henry]

Speaking of scopes, I ran across this article today. Anybody do this?

https://www.thetruthaboutguns.com/scope ... -easy-way/

I always just eyeball it first with one eye and then the other. When they both agree it’s level enough for me. I can’t remember the exact dimensions but being off just one degree will throw the point of impact to the side about and inch at a 100 yards. So not only does the scope have to be level but the rifle too when shooting.