Quick Tip: Basics of Measuring & Adjusting Iron Sights
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- เผยแพร่เมื่อ 26 ก.ค. 2024
- As red dot sights continue to get smaller, they are appearing on more and more firearms, both handguns and long guns. But a lot of guns still have traditional "iron" sights, including pistols, revolvers, and lever action rifles. It's more than likely that at some point you'll need to adjust iron sights to change a gun's point-of-impact. Brownells Gun Tech™ Caleb Savant is here to give us some basic "mission-critical" tips on adjusting iron sights, which are also often called open sights.
A KEY DIFFERENCE: If your gun has fixed sights, the only way to change the elevation of your groups on the target is to get a front sight of a different height. In order to figure out the new sight's height, you need to measure the height of the front sight currently on the gun. The tricky part is that pistol and rifle front sights are measured differently!
The height of a PISTOL front sight is measured from the top of the sight to the top of the slide. But the height of a RIFLE front sights is measured from the top of the sight to the bottom of the dovetail. These rules are important when you measure your current sight so you can determine what height you want the replacement sight to be.
ADJUSTING THE SIGHTS: This tends to trip up new shooters, but a couple rules of thumb will help you avoid mistakes. Let's say you've shot a few groups and discover you need to raise the gun's point of impact. If you have an adjustable rear sight, you just raise that rear sight. If the rear sight is fixed, you'll have to LOWER the front sight to RAISE the point of impact. Basically, the front sight has to be moved in the OPPOSITE direction from where you want your groups to move. If you need to move the point of impact to the left, for example, you'll need to drift the front sight to the right. Kinda counter-intuitive, isn't it?
K.I.S.S. RULE: Whenever you can, adjust the rear sight to change the point of impact. That keeps the process simple and makes it a whole lot easier. - กีฬา
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A neat way to remembers sight adjustment is FORS. Front opposite rear same.
"FORS"
Front opposite, Rear same
That line of suppressor's on the safe, it's so amazingly stupid that we can't buy something to make our rifles not sound like cannon fire
You can in Texas
@patrickguest8491 in Texas as long as you buy one manufactured in Texas right? It just can't leave Texas?
@DragonsOfThunder I believe that is correct, yes. Although there might be a few other states. Texas is the most famous though.
@@patrickguest8491 Good luck with that. That’s one of those laws that exist, but isn’t actually used. Again, good luck.
You still have to get ATF approval before you can LEGALLY own or make a suppressor in Texas, the ATF is still challenging the law.
Visual aids always help when explaining sight alignment, sight picture, and sight adjustments.✌🏽
Never knew about the measurement differences. Learn something new everyday.
Both standards make sense, but I wish the manufacturers would just pick one to use.
Many thanks. Well described.
GREAT - and appreciated - information, thank you.
I had to swap out the front sight on my 73 Winchester. It was a foot and a half high at 50 yds! Well outside of what the rear sight could accomplish. You might want to cover which side to push them out of and the dovetail fitting as well. I got the replacement from ya'll and the rifle is amazingly accurate now.
Agree. Are all dovetails cut to the same size? How does one measure? Thanks for the video.
I had the same problem with my '94 Winchester. It was fitted with a Williams peep sight, and even when at the lowest setting, it shot too high. A new, higher, front sight got it back where it belonged.
@Maynard Carmer Not sure why, but it seems common now. The sight on mine would have been serviceable if I wanted to shoot at three hundred yards, but that isn't exactly 45 Colts best range. 🙂
Great info.
I'm glad you did. This one did a lot of people and you wouldn't believe how many people don't understand. It's the same thing on a bow the people on on the string you go to the opposite way that it's going to go. If you're shooting too high you drop it and the pins you do it just like you. Would you put the pins towards the hole so I'm glad you finally explain this to some people. Hopefully they got it. It's not hard. It just gets a little confusing sometimes the way I remember or go by the rear site. If it's shooting left you move into the right and you have to bring them tip of the barrel to match up with the site in the back. That might confuse people too. I better keep my mouth shut and let you do it
He said that backwards. If point of impact is left of the target, you move the front sight post to the left. If you're moving the rear sight, you move it to the right.
OK, so, great presentation. So, the difference between rifle and handgun. So, thanks again.
THANKS!
I have never heard this before!
(home gunsmith here, no training!)
So if your impact is too low and to the left, you raise the rear sight and move it to the right ?
It was always confusing to me when they say
"Move your point of impact" because you're not really moving your point of impact, your moving your sites to align with the point of impact.
please do a video on just explaining buckhorn sights
Great info. Question on this I get handgun to the slide but what about a revolver? Would it go to barrel or mount point like rifle?
Unless you’re buying a front sight from CZ Customs. They measure the overall height of the sight so you have to account for the dovetail height.
Caleb, How about revolver front sights? Specifically black powder Colt replicas. Same as the semiauto?
How do you measure the sights and what measuring tool do you use ?
To change a front sight, do you tap out right to left or right to left?
What do you suggest if the sight won't budge to the left/right at all. Mine came from store significantly off and I tried hitting it with brass for an hour last night and it didn't budge. Then I hit it with steel and it put a ding in the dovetail part of sight. I feel that if I hit it any harder I am risking doing damage. It is the front sight that is off but it is off so significantly that it looks pretty ridiculous. I can probably get it dialed in by just adjusting rear sight but would really like to get front sight at least close to center barrel. This on a savage mark ii 22lr
I got a 94 Winchester in 32 special and took it out to shoot with the rear sight all the way down it still shot a foot high at fifty yards so I measured the front sight and it is short and measured about 280 thousand so I have order two sight to replace it one is 375 thousand and the other is 410 thousand I’m not sure which one will get it closer to being on target
never heard of or seen a rifle or a gun where the front sight could be adjusted for elevation.
I blew that one! I meant to say R to L, or L to R!
Thank you for the information.
It's valuable for those of us who didn't know.
Have a great day, and be safe gun people.
Since the sight mounts to the slide how could the measurement be different either way top of sight to bottom of sight or top of slide ?? I don't get it 😂 I must be 🤪
Got a p22 walther dang sights are dog crap , they move pretty much freely idk why, and now that he mentioned it bought a utg scope recently and although my elevation and windage dials indicate clockwise to the righy, its opposite of what my dials say and its for both dials, idk if its a manufacture defect, anyone had that happen?
When I operated my shop, I'd tell my customers simply to move the front sight towards the direction of impact. Or as one comical guy put it "Move it towards the boo boo." . Though overly simplified, yet it was technically correct.😏
This video came out 10 days too late for me. Luckily my buckhorn adjustment was able to overcome me ordering a too-short front sight for my rifle.
👍😊
Are we not gonna talk about how you made that M&P frame green? Cause inquiring minds want to know
The rule...
Left is right, Right is left.
Up is down, Down is up.
For the most part..😉
Yep, Bidenoptics!😂
In basic training they attempted to teach us an expression which I think caused more confusion then it cleared up because we all remembered it wrong (or thought we did). Chase the front, run from the back. Or run from the front, chase the rear. Hump the bunny, kick the pony. I'm sure one of those is correct.
@@woohoo2you966 LMAO 🤣
Very simple reminder. F.O.R.E. Front opposite- Rear the same.
FORS. You're thinking of golf. 😂
So since you all have some pull.. it seems that the vast majority of replacement sights for traditional rifles are lollipop sights. Can you all talk marbles/weaver/whoever into making more plain square-top dovetail sights? There are a few of us that HATE the dot on a stick?
XS has that covered I think. It’s where I got my taller Winchester 95 front blade.
Beware of this advice. Glock sights are NOT necessarily measured to the top of the slide. Look at the drawings and specs from Trijicon.
How do I know? I was the guy that forced Trijicon to show those drawings.
I’ve filed down many a front sight down on cheaper guns lol
I am completely lost here. If the impact is to the left, how on earth will help to move the front sight to the right (= "moving" the barrel MORE the left)??
Nah see: you put the front sight dead on in the middle of the target, but your point of impact (POI) is to the left. You want to move your POI to the right.
You move your front sight to the left, so now when you hold the front sight directly in the middle of the target, the muzzle of the gun is slightly more to the right, and your POI will equal your point of aim (POA).
The left / right thing being opposite isn't a rule about where the point of impact IS, it's a rule abut what to do to CORRECT it (meaning, if the point of impact is to the left, then you want to correct the sights to move point of impact to the RIGHT, and this is what he was talking about when he said either the rear sights go that direction but the fronts go in the opposite direction.. As Caleb mentions, for the rear sight, moving the sight to the right will accomplish this, as the only way of achieving the correct sight picture means the front of the gun will have to move slightly right. For the front sight being opposite, do this to understand better: Take a piece of paper and draw a rear sight notch. Let's say your point of impact on the gun is left. Above the rear sight you just drew, draw a little bead or a blade on the left side, to simulate drifting that front sight to the left, as Caleb instructs. Then, take a cleared and safe pistol. Aim the pistol in a safe direction with the front sight being left of the rear, just like your diagram on the paper.. Then take whatever action you have to take to make the sight picture normal again. You will have moved the barrel to the right. So now the point of aim with the front sight adjusted to the left has caused the point of aim to move to the right.
@@JaxenChaz That is how I figured it as well but that doesn't sound like what he is saying.
pffft, use an aimpoint t2 and call it a day.
When I'm dictator of the world I will ban all adjustable front sights. Only click adjustable rear sights will be allowed.
Congrats, you avoided the question ENTIRELY. You should coach Trump for depositions.
I was looking for the "how to move" them properly. Maybe next time.