Bore sighting question

ShooT_SpoTs · Nov 24, 2015

Put a new scope on my LR308 and wanted to bore sight it in first.
Directions say to bore sight it in at 25 meters. So I did. But of course I had to play with the laser and noticed if I put the laser out to 100 so yards that the cross hairs were at least a foot low. So my question is adjust it to 100 yards or follow the directions and stay bore sighted in at 25. ( I didn't follow the directions and bore sighted it in at 100.)
Looking for your methods !
Thanks

ARifleman1982 · Nov 24, 2015

I tried the directions with my XCR 700 .308 and hit dirt @50. So I put laser on target at 100 picked scope up close and went from there. I hate bore sighters lol.

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dk.easterly · Nov 24, 2015

ShooT_SpoTs said:
Put a new scope on my LR308 and wanted to bore sight it in first.
Directions say to bore sight it in at 25 meters. So I did. But of course I had to play with the laser and noticed if I put the laser out to 100 so yards that the cross hairs were at least a foot low. So my question is adjust it to 100 yards or follow the directions and stay bore sighted in at 25. ( I didn't follow the directions and bore sighted it in at 100.)
Looking for your methods !
Thanks

Do you know the ballistics of the round you are zeroing for?

Those are more than likely just generic directions. They don't take into account scope height, barrel length, etc...

In my experience a 25m zero will shoot high @100 and dead on @200m.

ARifleman1982 · Nov 25, 2015

dk.easterly said:
Do you know the ballistics of the round you are zeroing for?

Those are more than likely just generic directions. They don't take into account scope height, barrel length, etc...

In my experience a 25m zero will shoot high @100 and dead on @200m.

Exactly.

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REDLINE83 · Nov 25, 2015

ARifleman1982 said:
Exactly.

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Agree.

Better off shooting targets at 25 yd and gradually work out. Depending on what you are wanting to do, I would read some ballistics charts and see where you want your zero to be.

Emperor · Nov 25, 2015

There are several really good threads about bore sighting and sighting a rifle in general. Some of the best advice I read here was from member Barney88PDC (a long distance shooter).

Find those and use the tips.

OmahaOutdoors · Nov 25, 2015

ARifleman1982 said:
I tried the directions with my XCR 700 .308 and hit dirt @50. So I put laser on target at 100 picked scope up close and went from there. I hate bore sighters lol.

Sent from my OnePlus One using Tapatalk.

I still am not a fan of bore sighters but sometimes they really are the best way to get it done, at least in my experience. Can be a hassle though, so I feel your pain.

ajridgedell · Nov 25, 2015

I love using a laser bore sighter for getting a scope set up. In my experience at 100 yards so cross hairs will need to be a couple inches below the laser at 100 yards

dk.easterly · Nov 25, 2015

Most laser boresights are for close range. They get you on paper within a relatively close distance. That's all they are meant to do (mostly).

Especially if using it for more than a few seconds/minutes at a time. Those lasers heat up and start to wonder pretty quick.

kibb · Nov 26, 2015

Get winchesters free ballistics calculator app. It has a bunch of popular rounds. You can plug all the data into that and you can get a ballistics data sheet. You can then sight in at whatever distance you want and you'll know from the sheet how high or low you should be. With the app you can plug in different zero distances so you can see the type of trajectories are best suited for your shooting application.

ImageUploadedByTapatalk1448570828.929350.jpg

stag0608 · Nov 26, 2015

LSUCajun83 said:
Agree.

Better off shooting targets at 25 yd and gradually work out. Depending on what you are wanting to do, I would read some ballistics charts and see where you want your zero to be.

Bore sighting is a waste of time.

Cochise · Nov 26, 2015

stag0608 said:
Bore sighting is a waste of time.

On the contrary, not bore sighting is a waste of time and a bigger waste of ammo. Bore sighting isn't meant to be perfect, it is only meant to help you avoid wasting a box of rounds just to get on paper.

kibb · Nov 26, 2015

^this

Gator 45/70 · Nov 26, 2015

I only use a mirror.

kz45 · Nov 26, 2015

Take the bolt out, pick a target about 100 yards away and center it in the bore while looking through it, now dial the scope in on it, just remember when making the correction their going to be backwards

dk.easterly · Nov 26, 2015

kz45 said:
Take the bolt out, pick a target about 100 yards away and center it in the bore while looking through it, now dial the scope in on it, just remember when making the correction their going to be backwards

Doesn't work that we'll on semi autos.

kibb · Nov 26, 2015

It will if you take the BCG out.

kz45 · Nov 26, 2015

It also helps if you separate the upper from the lower

kibb · Nov 26, 2015

Yes it does!

Barney88PDC · Nov 26, 2015

http://www.bayoushooter.com/forums/...bore-sighter&p=1478895&highlight=#post1478895

Bore sighting question

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