aguyindallas
Member
Ok, for those that have experience with laser boresighters....
They claim to be POA at 100 yards...is this true if done properly?
They claim to be POA at 100 yards...is this true if done properly?
Laser Boresighters....effective?
- Thread starter aguyindallas
- Start date
- Status
countertop
Member
It certainly is the the $40 one I got from Cabellas
Worked like a charm
Worked like a charm
jrhines
Member
Maybe not out to 100 yds...
I use two types of laser bore sighters to do a first check on clients guns. I usually do this at 25-40 yards (the distance into my garage in the daytime and across my backyard onto the side of the house next door at night), and this gets me "on the paper". These little lasers run outa' shine much beyond 50 yds., and you can't do anything real precise in the dark. I use one system that slides into the bore using a set of plastic arbors to keep it centered, and the AimShot lasers in brass arbors that go in the chambers of the various guns. Get 'em set close and then head for the range.
I use two types of laser bore sighters to do a first check on clients guns. I usually do this at 25-40 yards (the distance into my garage in the daytime and across my backyard onto the side of the house next door at night), and this gets me "on the paper". These little lasers run outa' shine much beyond 50 yds., and you can't do anything real precise in the dark. I use one system that slides into the bore using a set of plastic arbors to keep it centered, and the AimShot lasers in brass arbors that go in the chambers of the various guns. Get 'em set close and then head for the range.
aguyindallas
Member
I was looking online last night (cant recall where I saw it), but there was a laser boresighter that had some sort of small target that you lined your scope up with at 25 feet. Supposedly if you lined this up at 25 feet, you would be at POA at 100 yards.
I am looking to see if anyone has actually been POA by setting one of these up?
Countertop: Which one are you using?
I am looking to see if anyone has actually been POA by setting one of these up?
Countertop: Which one are you using?
db_tanker
Member
With the little 10 dollar laser boresighter I got at Wal Mart, I can get it on the paper at 100 yards...from there its all good. 
D
D
aguyindallas
Member
I know they will get you on paper. I am more wondering if anyone has had enough luck with them to get any sort of group, without field adjustment.
In other words, use the laser boresighter and its ready to hunt.
In other words, use the laser boresighter and its ready to hunt.
Starter52
Member
Since lasers travel in a straight line, and bullets don't, you cannot expect a bullet to impact where the boresight laser hits. You will have to adjust the sights.
Don't laser boresight and then go hunting.
Don't laser boresight and then go hunting.
aguyindallas
Member
Ok, sounds good, and of course makes sense. I was just trying to determine if bore sighting with an old school boresighter vs. a laser boresighter would be any better/different.
I was assuming a laser was more effective, but if they both just get you on paper, I am not sure if it matters.
I was assuming a laser was more effective, but if they both just get you on paper, I am not sure if it matters.
Aguy,
I don't have the answer to your query, but it is an interesting one. In theory, you could get the tradjectory information for the load that you are shooting and sight the gun in by offsetting the scope to compensate for the fact that the laser light travels in a straight line.
Has anybody who commented earlier on the fact that you can get it on paper been aware if it is just an elevation adjustment after that?
I don't have the answer to your query, but it is an interesting one. In theory, you could get the tradjectory information for the load that you are shooting and sight the gun in by offsetting the scope to compensate for the fact that the laser light travels in a straight line.
Has anybody who commented earlier on the fact that you can get it on paper been aware if it is just an elevation adjustment after that?
Crosshair
Member
I tell everyone who asks about a laser boresighter, "They will get you on the paper." They never get you 100% on target, but you are close enough so it is easy to fine tune it so it is right on.
jrhines
Member
A bit more than just an elevation adjustment...
KarlG - If you can execute a trigger pull the same way you point the gun with the laser in it, you can indeed reduce the final adjustment down to just an elevation tweak. I can't pull a trigger that smoothley and the act of the gun firing provides some extra inputs that may require a windage tweak. YMMV
KarlG - If you can execute a trigger pull the same way you point the gun with the laser in it, you can indeed reduce the final adjustment down to just an elevation tweak. I can't pull a trigger that smoothley and the act of the gun firing provides some extra inputs that may require a windage tweak. YMMV
only one issue
i agree with the above, and do especially like the brass arbor style ones that fit like a cartridge into the cahmber: reduces the margin of error, at least theoretically.
Only issue i have come across is that these things burn out batteries like a forest fire burns through toothpicks. I have seen over and over again a person put new batteries in and insert it; begin sighting in the scope and have the laser be almost non-visible in just a few minutes.
FWIW.
C-
i agree with the above, and do especially like the brass arbor style ones that fit like a cartridge into the cahmber: reduces the margin of error, at least theoretically.
Only issue i have come across is that these things burn out batteries like a forest fire burns through toothpicks. I have seen over and over again a person put new batteries in and insert it; begin sighting in the scope and have the laser be almost non-visible in just a few minutes.
FWIW.
C-
Al Thompson
Moderator Emeritus
I use one at work and find that it's faster, but not better. Boresight, then zero. Some rifles (most) it gets on paper, but some are way off. I have found over the years that it's just plain more efficent to "confirm" the boresight with a 25 yard test fire. One round should tell you if the rifle/ammo combo will be on paper at 100y.
aguyindallas
Member
Thanks for all of the help guys. I think I am going to put one on my list of stuff I need. Its one of the tools that you dont need much, but when you need it...you need it now.
kalashnikat
Member
- Joined
- Mar 21, 2007
- Messages
- 7
making laser boresighters reach 100 yards
By the way, even low power laser boresighters can reach out beyond 100 yards if the target is either a plastic reflector or some of the reflective tape used to outline trailers and traffic cones/barricades. It's not hard to find or expensive, and if Cabela's and other vendors were smart they'd include an 8 x 10 sheet of it to make their product work well in full sunlight.
Kalashnikat
By the way, even low power laser boresighters can reach out beyond 100 yards if the target is either a plastic reflector or some of the reflective tape used to outline trailers and traffic cones/barricades. It's not hard to find or expensive, and if Cabela's and other vendors were smart they'd include an 8 x 10 sheet of it to make their product work well in full sunlight.
Kalashnikat
I just typed a long message baout this on another forum. If I remembered which one, I'd copy and paste...
But basically - I got a Bushnell laser bore sighter for $35.99 online in Dec. I wanted to sight in my EOtech on a new PS90.
I did it just before it became night time. I guestimated 50 yards. At the range, a few days later, I was on the paper - about 4 inches at 10 o'clock. That was more than good enough to start on the paper. Then, just manual adjustments from there.
Since doing this, I discovered that if I spin the boresighter in the barrel, it rotates the dot a bit. So, if I had to do it again, I think I could do it slightly better.
But, with the cost of 5.7 ammo, it did help me out a nd saved me lots of ammo had I not used it.
But basically - I got a Bushnell laser bore sighter for $35.99 online in Dec. I wanted to sight in my EOtech on a new PS90.
I did it just before it became night time. I guestimated 50 yards. At the range, a few days later, I was on the paper - about 4 inches at 10 o'clock. That was more than good enough to start on the paper. Then, just manual adjustments from there.
Since doing this, I discovered that if I spin the boresighter in the barrel, it rotates the dot a bit. So, if I had to do it again, I think I could do it slightly better.
But, with the cost of 5.7 ammo, it did help me out a nd saved me lots of ammo had I not used it.
glockman19
Member
- Joined
- Mar 16, 2007
- Messages
- 3,700
On an A-bolt I prefer the old way. Take out the bolt, look down the barrel, align the scope and shoot. Always on paper. A few slight adjustments from a friend sighting and you're on bulls eye.
BobCav
Member
If nothing else, it sounds like a great tool to teach a beginner about sighting and aim-points.
Zsnark
Member
I have this NcStar piece of dung which I have been trying to use for over a year. I am new to scopes...so I thought it was me. You know what this thing was out of line when I got it. I recently checked it out as per their instructions (when you go over .50 caliber). It is no where near on target at the .223 arbor setting. So I try their instructions re. zeroing the thing in. You have to be a precision engineer/gunsmith to adjust the thing. I have spent about $2000 or of my time trying to make this "little time saver" work. I paid about 30 bucks for it. Sending it back, etc. isn't worth the trouble. Is there a "gold standard" boresighter out there? I'd probably get one. Any comment would be appreciated.
AAW
AAW
rocinante
Member
I had one of those but the bolt carrier on my AK closed and cut the wires off super clean. I didn't like it and didn't think it worked that well.
rcmodel
Member in memoriam
If you can take the bolt out and boresight through the barrel, the lasers are a monumental waste of time & money.
Even if you can't bore sight through the barrel.
A shot or three at 25 yards, and a ruler to measure the center from the X will come way closer to getting you where you want to be at 100.
Stock bedding & barrel harmonics make line of sight laser boresighting a hit & miss at long range.
If they have a good use, it might be for checking zero during a hunt.
If the rifle is sighted in, and you actually know how that relates to the laser spot on a target, you can check the zero after a bump or fall without firing a shot to spook game.
But, where that laser spot is, and were the 100 yard zero is, are seldom if ever going to be the same thing.
rc
Even if you can't bore sight through the barrel.
A shot or three at 25 yards, and a ruler to measure the center from the X will come way closer to getting you where you want to be at 100.
Stock bedding & barrel harmonics make line of sight laser boresighting a hit & miss at long range.
If they have a good use, it might be for checking zero during a hunt.
If the rifle is sighted in, and you actually know how that relates to the laser spot on a target, you can check the zero after a bump or fall without firing a shot to spook game.
But, where that laser spot is, and were the 100 yard zero is, are seldom if ever going to be the same thing.
rc
matrem
Member
I've saved myself a few rounds & some shoulder pain using a laser to swap scopes on slug guns. I'd not trust a "boresighter", but a laser will work well when you:
Sandbag the gun & make two marks on a distant flat surface. One mark at reticle center, one mark at laser dot.
If you're swapping scopes, re bag, realign laser dot to it's "old" position and adjust reticle center back to "its' dot".
If you're using to verify "zero" you'll need to use a specific / known distance and take note of the exact direction & difference between the two.
All in all, I'd not recommend buying one unless you're doing a LOT of scope swapping.
Sandbag the gun & make two marks on a distant flat surface. One mark at reticle center, one mark at laser dot.
If you're swapping scopes, re bag, realign laser dot to it's "old" position and adjust reticle center back to "its' dot".
If you're using to verify "zero" you'll need to use a specific / known distance and take note of the exact direction & difference between the two.
All in all, I'd not recommend buying one unless you're doing a LOT of scope swapping.
- Status
Similar threads
- Locked