Rifle Scopes fast & easy method to bore sight a new rifle... save your ammo!

[elfster1234]

guys, this is the easiest, most simple, damn near no ammo needed way to sight in your rifle... I personally use this method and it works great. Just pull the bolt out of the AR! even better with bolt actions! Hell, I'll do this in my living room with my upper only & bipod deployed looking out the picture window of my livingroom with a point of aim about 25yards away BEFORE I even jump in my car to hit the range. A 25yard zero is damn near the same as a 300yard zero for most AR calibers. This will get you close enough within a few clicks for a 100yard zero. You should have your zero within 3 shots minimum just as long as your rifle is set up correctly. Usually takes me all of one to two shots to get dead nuts zero with a new rifle. Don't waste your ammo!


HOW TO BORE SIGHT A RIFLE - YouTube

 

[buffybuster]

Master of the Obvious.......

 

[Graham]

fast & easy method to bore sight a new rifle... save your ammo!

But also with a poor, phony Russian accent.

 

[lash]

Very true, as many if not most of us know, but not obvious to many. I attended a beginning long range class this month along with 6 other shooters, most we're seasoned hunters and shooters. A guy I was shooting next to made a comment about having to shoot a couple boxes to sight in his 300 WM.

Not wishing to offend, I mentioned that there is a technique to use that could keep his sighting rounds down to 3-5. He said that he'd read about it but didn't believe it. I told him to come shoot with me and I'd show him how, at which point he found something else to do.

Between bore sighting and proper scope adjustment, 3-5 rounds is all it should take, but you have to believe in it first.

 

[elfster1234]

for those new to the game,,,,,, this will help

Master of the Obvious.......

 

[Lowlight]

Last week for the ELR bullet test I only had 6 rounds loaded as sightseers to fire 8 test rounds for record.

I was in the 10 ring at 300 yards with the second shot, scope was mounted on the spot minutes before.

Then with no other information beyond a single sighter I was in the 10 ring or better, the X ring at 300, 600, and 1000 yards with my test rounds.

Not rocket science, pull the bolt look down the barrel, dial the scope to match.

 

[jmorris]

A sliver of mirror through the ejection port will work on rifles you can't look straight down the bore.

 

[MoBoost]

But also with a poor, phony Russian accent.

I was born and raised in Russia - fake Russian accent is more widely acceptable than real one, go figure.

 

[elfster1234]

that is awesome

Last week for the ELR bullet test I only had 6 rounds loaded as sightseers to fire 8 test rounds for record.

I was in the 10 ring at 300 yards with the second shot, scope was mounted on the spot minutes before.

Then with no other information beyond a single sighter I was in the 10 ring or better, the X ring at 300, 600, and 1000 yards with my test rounds.

Not rocket science, pull the bolt look down the barrel, dial the scope to match.

 

[LRRPF52]

I always do this with my guns, but I make an offset target specific to the bore height. You can even do it in a short room if your eyeball is calibrated acutely. I clamp my upper in a vice with the insulators against the float tube, then get it lined up on the target. You can point the upper at a wall, and just have someone look down the bore for you while you place your offset target into position with tape.

I try to get as close to a 100yd zero as possible, so I measure my optic height above bore. Then I measure the distance to my offset target, which will have two aiming points, one for the bore, and one for the reticle.

If my scope is 2.5" above the bore, and my offset target is at only 10yds, take 10% of 2.5" and that is my aiming point mark for the reticle. I did it on a 1-4x GRSC before running a little carbine course for some people last week. My first round on a steel plate at 100yds was POI for POA, done.

The funny thing is, I pulled it off an 18" JP upper and threw it on a carbine, and when I went to get it dialed in, it already was dead-on. That's more common on AR15's in an ISO-9000 series QC environment that it ever was with bolt guns.

 

[shovelstrokeed]

Is this new?

Bore sight at whatever, my guns are mostly set up with 2.4-2.6 inches with the scope CL above the bore CL. I have a laser bore sighter gadget to work with. Set LOS to LOB about 2.2" higher and windage dead on.
Go to range. Fire a sighter. I don't care where it goes. Go to original point of aim. Move cross hairs to bullet hole for sighter without moving the gun or, use my reticle to determine the amount I need to move.
Second shot will be in the 10 ring. Adjust scope as needed for X-ring, 3rd shot is in X, two more just to confirm. Done.

 

[scudzuki]

I always do this with my guns, but I make an offset target specific to the bore height. You can even do it in a short room if your eyeball is calibrated acutely. I clamp my upper in a vice with the insulators against the float tube, then get it lined up on the target. You can point the upper at a wall, and just have someone look down the bore for you while you place your offset target into position with tape.

I try to get as close to a 100yd zero as possible, so I measure my optic height above bore. Then I measure the distance to my offset target, which will have two aiming points, one for the bore, and one for the reticle.

If my scope is 2.5" above the bore, and my offset target is at only 10yds, take 10% of 2.5" and that is my aiming point mark for the reticle. I did it on a 1-4x GRSC before running a little carbine course for some people last week. My first round on a steel plate at 100yds was POI for POA, done.

The funny thing is, I pulled it off an 18" JP upper and threw it on a carbine, and when I went to get it dialed in, it already was dead-on. That's more common on AR15's in an ISO-9000 series QC environment that it ever was with bolt guns.

I boresight every newly mounted optic in my living room with 2 dots drawn on a piece of paper, one 2-1/4" directly above the other.
I'm on paper at 100 yards every time.

Joe

 

[Pinecone]

A guy I was shooting next to made a comment about having to shoot a couple boxes to sight in his 300 WM.

Not wishing to offend, I mentioned that there is a technique to use that could keep his sighting rounds down to 3-5. He said that he'd read about it but didn't believe it. I told him to come shoot with me and I'd show him how, at which point he found something else to do.

I had a similar experience.

I was at my club range and guy was going to sight in his .300 Win Mag and commented about he might not have enough ammo (a full box).

So I offered to help him. He was zeroed at 100 yards in 3 shots.

 

[elfster1234]

There is one thing i really like to do and thats to help others, especially those new to the game. If i can save someone new to the game with a couple boxes of ammo just to bore sight there rifle when some of us more experienced shooters think its obvious, then why not. Some newbies just need a push in the right direction. Please, keep on sharing your methods as I'm always willing to learn from others myself. Fake Russian accent or not.

I am a complete newbie to precision shooting. I fell ass backwards into a great deal on this GAP-10 .308. After a few months of scraping together more money I was able to purchase a Nightforce Nxs from a member on the board here. I finally had some time to kill and the motivation to endure the freezing cold weather. As soon as I took the first shot I remembered why I had been using my laser bore sight to antagonize cats instead of sighting in rifles. What a waste. Anyway after a lot of work I was on paper. Unfortunately by that time I was out of time and almost out of ammo. I did pause and try out a three shot group before firing my last two rounds to get it right on. The 3 shot group is to the left of the key in the pic below. The other shots were me adjusting the scope. It was only at a hundred yards but for me it was the best group I have ever made with a semi. I am beyond impressed with GA Precision. What an outstanding rifle. It ran perfectly and the trigger was so nice I literally giggled. Here are some pics.

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Last week for the ELR bullet test I only had 6 rounds loaded as sightseers to fire 8 test rounds for record.

I was in the 10 ring at 300 yards with the second shot, scope was mounted on the spot minutes before.

Then with no other information beyond a single sighter I was in the 10 ring or better, the X ring at 300, 600, and 1000 yards with my test rounds.

Not rocket science, pull the bolt look down the barrel, dial the scope to match.

 

[TOP PREDATOR]

have always used this method, hitting X's within 3-5 shots. amazing how and as chronicled above in many posts that "professionally" laser bore sighted rifles hit completely off the paper at even 50Y.

works well enough doing it with open sights too, 6:00 hold, the spot on the top of the post.

i really like to "preliminarily" do this while mounting / leveling a scope against a leveled horizontal + vertical crossed lines on paper taped to the garage wall - 2 birds one stone. just make sure the rifle is leveled while doing both.

usually i mount my optics after sunset as later that night, putting the scope and bore matching POA against a street light or other illumination. it shines up the internal wall of the barrel nicely giving a better optical view of where centerbore is and the crosshairs matching up in the scope.


ELFSTER1234:
I'll do this in my living room with my upper only & bipod deployed looking out the picture window of my livingroom with a point of aim about 25yards away BEFORE I even jump in my car to hit the range. A 25yard zero is damn near the same as a 300yard zero for most AR calibers. This will get you close enough within a few clicks for a 100yard zero. You should have your zero within 3 shots minimum just as long as your rifle is set up correctly. Usually takes me all of one to two shots to get dead nuts zero with a new rifle. Don't waste your ammo!


for levers, pumps, etc JMORRIS:
A sliver of mirror through the ejection port will work on rifles you can't look straight down the bore.

(even a bore light at very close range projects enough beam on paper to at least get windage in the neighborhood)

LRRRPF52:
make an offset target specific to the bore height. You can even do it in a short room if your eyeball is calibrated acutely. I clamp my upper in a vice with the insulators against the float tube, then get it lined up on the target. You can point the upper at a wall, and just have someone look down the bore for you while you place your offset target into position with tape.

I try to get as close to a 100yd zero as possible, so I measure my optic height above bore. Then I measure the distance to my offset target, which will have two aiming points, one for the bore, and one for the reticle.

If my scope is 2.5" above the bore, and my offset target is at only 10yds, take 10% of 2.5" and that is my aiming point mark for the reticle. I did it on a 1-4x GRSC before running a little carbine course for some people last week. My first round on a steel plate at 100yds was POI for POA, done.

SHOVEL STROKED:
Go to range. Fire a sighter. I don't care where it goes. Go to original point of aim. Move cross hairs to bullet hole for sighter without moving the gun or, use my reticle to determine the amount I need to move. Second shot will be in the 10 ring. Adjust scope as needed for X-ring, 3rd shot is in X, two more just to confirm. Done.

LOWLIGHT:
Not rocket science, pull the bolt look down the barrel (at a spot / target), dial the scope to match.

^ the perfect definition of "bore sighting"