Good Boresighter?
- Thread starter beagler
- Start date
2muchgun
New member
I have been using a Bushnell professional boresighter for many years now. It comes with three different arbors that expand to a given caliber size. Between the three I believe it goes from 22-45 cal. I had to buy a separate one for 50cal. This bore sighter is very popular with gunsmiths from what I have heard. I think they run around $100 now--2MG
Actually I'm not sure their needed. A laser boresight I borrowed from a friend was not worth the time I played with it.
I used this precedure when I had new reticles installed a couple of month back on my rifles. My son and I had them both back on target within 15 shots combined. I think Leupold gave us this procedure
The arc of every bullet in flight goes though the Line of Sight of a scope twice. Since the scope is mounted higher than the bore of the barrel, when the bullet is first fired it must rise though the line of sight toward the top of the arc. This occurs from about 19 to 23 yards in front of the rifle. If you have a good rest (not over the top of a cardboard box), you should be able to hit the broad side of most paper targets at this distance.
Make sure your scope is centered. One at a time move the elevation and windage adjustments all the way in one direction till it stops then turn the same adjustment all the way the other direction until it stops. Then turn it back half the number of clicks or what ever measurement is shown on the dial. This should center the reticle in the scope
First use the windage adjustment on the back scope mounts to move the bullet left or right back to the center line of the target. Only when it's centered (with the bolts tight)should you use the elevation adjustment built into the scope to raise or lower point of impact. A 1/4" high at this distance will put you about 1" high at 100 yards and close to right on at 200 yds.
If you have a ballistics calculator, you can actually get even closer during sighting in.
I used this precedure when I had new reticles installed a couple of month back on my rifles. My son and I had them both back on target within 15 shots combined. I think Leupold gave us this procedure
The arc of every bullet in flight goes though the Line of Sight of a scope twice. Since the scope is mounted higher than the bore of the barrel, when the bullet is first fired it must rise though the line of sight toward the top of the arc. This occurs from about 19 to 23 yards in front of the rifle. If you have a good rest (not over the top of a cardboard box), you should be able to hit the broad side of most paper targets at this distance.
Make sure your scope is centered. One at a time move the elevation and windage adjustments all the way in one direction till it stops then turn the same adjustment all the way the other direction until it stops. Then turn it back half the number of clicks or what ever measurement is shown on the dial. This should center the reticle in the scope
First use the windage adjustment on the back scope mounts to move the bullet left or right back to the center line of the target. Only when it's centered (with the bolts tight)should you use the elevation adjustment built into the scope to raise or lower point of impact. A 1/4" high at this distance will put you about 1" high at 100 yards and close to right on at 200 yds.
If you have a ballistics calculator, you can actually get even closer during sighting in.
Bloodhound
New member
I will add a plug for the Bushnell, along with 2muchgun. I have had one for 3 years...Its reliable, and easy to use. It gets the gun on paper and saves the shooting at the 25 yard line...thats anywhere from 3 to 10 shots depending on the setup...I'm not concerned with the rounds, as much as time saved...with barrel cool down time, it saves me between 30 min and an hour.
Have only used one laser bore sighter...seemed OK, but not as flexable as the old style
Have only used one laser bore sighter...seemed OK, but not as flexable as the old style
coyotehunter2
New member
I've got one of the laser sighters that you insert different caps into the chamber for diferent calibers. Works fine. I usually can get the rifle zeroed in on the range pretty quick after using it. Is it any better than the Bushnell? Probably not. With the one i have got you actually put a target up in the house and zero the scope in that way.
I also use the Bushnell Optical Bore-sighter. I use it in 4 situations:
1/ Bore-sighting the rifle to get on the paper.
2/ After the rifle is sighted in, then I record the chart coordinates and I use them to recheck the scope if I bang the gun or after long trips
3/ I think the bore sighter is very useful when installing the scope. I use is to see ring alignment before I tighten and thread lock everything down. If you can mount the scope so the reticle is somewhat in the middle of the target, then you will not have to use the internal adjustments of the scope as much.
4/ I use it to make sure the scope is square with the rifle during installation of the scope
1/ Bore-sighting the rifle to get on the paper.
2/ After the rifle is sighted in, then I record the chart coordinates and I use them to recheck the scope if I bang the gun or after long trips
3/ I think the bore sighter is very useful when installing the scope. I use is to see ring alignment before I tighten and thread lock everything down. If you can mount the scope so the reticle is somewhat in the middle of the target, then you will not have to use the internal adjustments of the scope as much.
4/ I use it to make sure the scope is square with the rifle during installation of the scope