Bore Sights
- Thread starter trigun87
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All bore sights are a waste of time and money. You will not be able to zero your rifle with one. All they do is get your 1st shot close enough to be on the paper so you can go from there. I have never had any trouble doing that without one. I have had clerks volunteer to bore sight my gun a few tims. I can't tell that they have ever saved me a single shot when sighting in.
BADUNAME37
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With a large enough piece of paper, cardboard, whatever and a dot in the middle, starting at 25 yards, you can zero your rifle pretty fast.
One shot at 25 yards, adjust sights as needed, second shot at 50 yards, adjust sights again as needed, third shot at either 75 or 100 yards, adjust sights as needed.
It isn't rocket science and you don't need a laser (unless you wanted one anyway for your cat to play 'chase the dot').
One shot at 25 yards, adjust sights as needed, second shot at 50 yards, adjust sights again as needed, third shot at either 75 or 100 yards, adjust sights as needed.
It isn't rocket science and you don't need a laser (unless you wanted one anyway for your cat to play 'chase the dot').
OrangePwrx9
Member
They help
I've used mine (optical bore-sighter mounted on expanding spud that slides into muzzle) with fairly good effect when removing and replacing a scope. If the the scope being removed is well zeroed, I'll record where the crosshairs fall on the bore-sighter grid prior to removal. While the scope is off, I'm careful not to disturb the bore-sighter. When replacing the scope (either with the same scope or a different one), I re-zero to place the crosshairs where they were on the grid prior to removal.
It's worked quite well so far, but for something like a varmit or target rifle, I'd certainly want to touch up the zero at the range. Surprisingly, it even works if the boresighter is removed and then reinstalled prior to replacing the scope. I've always had doubts about the repeatability of optical boresighters due to how they're mounted. Apparently that mounting gets the job done.
Recently I mounted a scope on my .223 Saiga. Used the bore-sighter to see where the iron sights were zeroed (it was difficult but doable) and then zeroed the scope to the same point on the grid. At the range it took a few clicks to bring the scope precisely where it belonged, but for human size targets at 100-200 yards, I didn't need to touch it.
I've used mine (optical bore-sighter mounted on expanding spud that slides into muzzle) with fairly good effect when removing and replacing a scope. If the the scope being removed is well zeroed, I'll record where the crosshairs fall on the bore-sighter grid prior to removal. While the scope is off, I'm careful not to disturb the bore-sighter. When replacing the scope (either with the same scope or a different one), I re-zero to place the crosshairs where they were on the grid prior to removal.
It's worked quite well so far, but for something like a varmit or target rifle, I'd certainly want to touch up the zero at the range. Surprisingly, it even works if the boresighter is removed and then reinstalled prior to replacing the scope. I've always had doubts about the repeatability of optical boresighters due to how they're mounted. Apparently that mounting gets the job done.
Recently I mounted a scope on my .223 Saiga. Used the bore-sighter to see where the iron sights were zeroed (it was difficult but doable) and then zeroed the scope to the same point on the grid. At the range it took a few clicks to bring the scope precisely where it belonged, but for human size targets at 100-200 yards, I didn't need to touch it.
BADUNAME37
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If I were replacing a scope, I would pad and clamp the gun in a vice so it won't move, center the old scope onto a grid across on a wall in my basement, remove, then install the new one, and center it to the same POI on the grid.
Wouldn't that be essentially the same as what you are stating, but without the use of the bore sighter?
Wouldn't that be essentially the same as what you are stating, but without the use of the bore sighter?
dubbleA
Member
I was skeptical when they first appeared years ago but find a laser bore sighter a valuable tool in my gun room. Will they provide you an exact zero for your firearm? NO they will not but they will get you on paper without firing a shot.
They certainly save time and money in IMHO. Yes you can take a bolt out and sight down the bore and come faily close at 100 yds with practice as I have done many times.
To the folks that dont have much experience with mounting sights/optics and sighting in different types of firearms/actions let me asK a few questions.
Mounting a scope on a new S&W 460 handgun, how do I get it on paper without firing a shot?
How about an AR 15, A Rem 750, a Browning BPR?
I just mounted a scope on a Marlin 336 and how do I get it on paper ? look down the barrel?
I have a few African calibers, ammunition is expensive $5-$10 a shot. How do you go about getting it on paper without wasting valuable ammo and dealing with the wasted recoil.
Shooting a 50 BMG at 25 yards to get on target, My match ammo runs $8 a pop. lol that's funny.
Say I install a laser on my new Sig 40 S&W how do I go about quickly adusting to POA?
These are only a few examples but I can say for certainty that using a laser bore sighter it's not a problem . It's simple, fast and effective.
They certainly save time and money in IMHO. Yes you can take a bolt out and sight down the bore and come faily close at 100 yds with practice as I have done many times.
To the folks that dont have much experience with mounting sights/optics and sighting in different types of firearms/actions let me asK a few questions.
Mounting a scope on a new S&W 460 handgun, how do I get it on paper without firing a shot?
How about an AR 15, A Rem 750, a Browning BPR?
I just mounted a scope on a Marlin 336 and how do I get it on paper ? look down the barrel?
I have a few African calibers, ammunition is expensive $5-$10 a shot. How do you go about getting it on paper without wasting valuable ammo and dealing with the wasted recoil.
Shooting a 50 BMG at 25 yards to get on target, My match ammo runs $8 a pop. lol that's funny.
Say I install a laser on my new Sig 40 S&W how do I go about quickly adusting to POA?
These are only a few examples but I can say for certainty that using a laser bore sighter it's not a problem . It's simple, fast and effective.
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"If I were replacing a scope, I would pad and clamp the gun in a vice so it won't move, center the old scope onto a grid across on a wall in my basement, remove, then install the new one, and center it to the same POI on the grid."
Inspector,
That is the kind thing I love to run across here. Something I don't need right now but will remember it for when I do.
Good one.
Inspector,
That is the kind thing I love to run across here. Something I don't need right now but will remember it for when I do.
Good one.
Trigun87,
I have borrowed one & had pretty decent results with rifles I cant see down the bore on. Sometimes not as impressive as others, but I can say the same about looking down the bore. Once, on a laser bore sited rifle I didn't have to touch the windage, although that is not the norm.
I think they have there place. I'd try to get by without if you can. Some of it depends on the style of rings and bases.
Later,
WNTFW
I have borrowed one & had pretty decent results with rifles I cant see down the bore on. Sometimes not as impressive as others, but I can say the same about looking down the bore. Once, on a laser bore sited rifle I didn't have to touch the windage, although that is not the norm.
I think they have there place. I'd try to get by without if you can. Some of it depends on the style of rings and bases.
Later,
WNTFW
chevyforlife21
Member
its not really necessary it maybe takes a extra 4 rounds to sight in whithout one.
wally
Member
Its worth it to me for the rifles where I can't remove the bolt and look through the bore, but as has been said, they only get you on the paper, 50 yards for sure, 100+ and you can still easily be off a standard sight in target.
I've found mine to be by far the most useful for red dots on handguns, I usually don't need to tweak them shooting steel plates at 10 yards after adjusting with the laser bore sighter.
Key trick is to rotate the thing in the bore and sight in so your aiming dot or reticle is in the center of the obit traced out as you rotate the laser.
I don't think they are useful at all for setting iron sights -- meaning I'd trust the factory setting on pistol sights and be sure its not me before changing anything.
Once you think you've got the thing "zeroed" you still need ten shots after the last adjustment to really know the center of your loads dispersion. Any less and you are likely fooling yourself, but two or three shots is usually close enough for normal under 200 yard deer hunting given all the other variables involved -- range estimation errors and inadequate wind drift compensation usually are much larger than POA/POI zeroing errors in the field.
--wally.
I've found mine to be by far the most useful for red dots on handguns, I usually don't need to tweak them shooting steel plates at 10 yards after adjusting with the laser bore sighter.
Key trick is to rotate the thing in the bore and sight in so your aiming dot or reticle is in the center of the obit traced out as you rotate the laser.
I don't think they are useful at all for setting iron sights -- meaning I'd trust the factory setting on pistol sights and be sure its not me before changing anything.
Once you think you've got the thing "zeroed" you still need ten shots after the last adjustment to really know the center of your loads dispersion. Any less and you are likely fooling yourself, but two or three shots is usually close enough for normal under 200 yard deer hunting given all the other variables involved -- range estimation errors and inadequate wind drift compensation usually are much larger than POA/POI zeroing errors in the field.
--wally.
BADUNAME37
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Thank you!
That is also why I like this site, for the same reason!
wally
Member
If only we had basements in Houston
--wally.
ScottG1911
Member
bore sights are junk, i had the same one from wally world as you mentioned. don't plan on adjusting your scope to it until night time. even on an overcast day that beam is impossible to see. complete junk
BADUNAME37
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I forgot.
My friend in New Mexico says they don't have basements there.
My friend in New Mexico says they don't have basements there.
OrangePwrx9
Member
So tape the grid to the neighbor's garage.
"So tape the grid to the neighbor's garage."
I already dry fire on all his other stuff.
1 of my neighbors is a shooting & reloading buddy which is convenient. We share a lot of resources.
I have had boresights not work well in bright light also. They are pretty good at night if you have some light to see.
I already dry fire on all his other stuff.
1 of my neighbors is a shooting & reloading buddy which is convenient. We share a lot of resources.I have had boresights not work well in bright light also. They are pretty good at night if you have some light to see.
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