User Panel
Posted: 12/6/2016 9:06:33 AM EST
I have fully adjustable sights on my pistol. It's a .45 ACP
What range should I adjust them for? 7 yards? 10 yards? |
|
Pick a distance then shoot the pistol at other ranges to know where to hold.
You will know quickly if you want to use a different zero. |
|
|
|
No, not at all. The difference is small. My son and I routinely practice handguns out to 100 yards - just to know the drop, just in case. Can we hit the silhouette all the time? No. Could we make someone wish they were a little farther away? Yes.
|
|
|
It doesnt matter where you zero it because if someone get hit with a .45 slug "knockdown power"...
|
|
|
|
With 230gr at 850 fps zeroed at 7 yards, you will be within .75 inches up or down out to 50 yards (point blank range).
So zero for 6 to 8 yards unless you plan to do some 200 yard shooting. The point? It doesn't matter for pistols because MPBR for small targets is effectively outside of normal shooting distances. |
|
While we're on the subject, what distance would you zero a 9mm with an RMR?
I see an RMR in the future for my G19 |
|
Quoted:
That is a big arc though, right? If it's zeroed for that distance, but you have a target up at 7 yards or a so, you're gonna have to aim for the pelvis to get a chest shot..... View Quote NO. Not at all. A 25 yd zero will give you "A" zone hits at 7 yds. You can also make solid body hits at 50 yds with a base of neck hold |
|
Quoted:
I have fully adjustable sights on my pistol. It's a .45 ACP What range should I adjust them for? 7 yards? 10 yards? View Quote what are you going to use the pistol for? Self defense? 10 yards is probably plenty. offensive use? then however far you think you're going to shoot. |
|
|
Just getting into shooting with a RDS on my Glock 19. I had my slide milled for the Burris FF2 that I already had. I read an article from Suarez that indicated that a 10 yard zero distance is what he recommends. On a 9mm, what are you guys using?
|
|
Quoted:
Not... how it works. Pistols are usually zeroed at 25 or 50 yards. Most pistols can hit pretty easy at 100 yards, especially anything 9mm and faster (my .38 super is only like 4" holdover at 100) Slower like .45 takes 8" or so. Here's a table for .45 acp ball with a 50 yard zero. http://ffden-2.phys.uaf.edu/211_fall2013.web.dir/Addison_Miller/Physics%20Porject/Images/Trajectory--45ACP_zpsdc8123cc.jpg View Quote No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. |
|
|
|
To expand on my above post, a 25 yard zero will be within 2 inches out to 45-50 yards.
A 50 yard zero will be within 2 inches out to 60-65 yards. The MPBR will be within 2 inches out to 70-75 yards. The near zero is 4-5 yards. The far zero is 60-61 yards. This is for a 230 gr .45 ACP at 850 fps using JBM ballistics calculator. This calculator's minimum target size is 2 inches. However, the MBPR for 2 inches gives a spread of 4 inches before leaving the target zone. The 25 yard zero gives a spread of 2.1 inches. The 50 yard zero gives a spread of 3.2 inches. We want to minimize the spread while getting out as far as possible. (How much error is acceptable due to the trajectory?) So if we make the target size 1.5 inches (spread of 1.5 inches). Then the MPBR near zero is 6 yards and the far zero is 40 yards according to shooterscalculator.com |
|
I have two .45 acp 1911's with fixed sights and CT laser grips.
I time the laser to the sights at 25 yards. |
|
Quoted:
That is a big arc though, right? If it's zeroed for that distance, but you have a target up at 7 yards or a so, you're gonna have to aim for the pelvis to get a chest shot..... View Quote View All Quotes View All Quotes Quoted:
Quoted:
I do all mine at 25 yards. That is a big arc though, right? If it's zeroed for that distance, but you have a target up at 7 yards or a so, you're gonna have to aim for the pelvis to get a chest shot..... No... pistol sights are very close to the bore, so there is very little "offset" issue. And even at .45ACP velocities the POI at 7 yards at 25 yards is really close together. |
|
|
Quoted:
To expand on my above post, a 25 yard zero will be within 2 inches out to 45-50 yards. A 50 yard zero will be within 2 inches out to 60-65 yards. The MPBR will be within 2 inches out to 70-75 yards. The near zero is 4-5 yards. The far zero is 60-61 yards. This is for a 230 gr .45 ACP at 850 fps using JBM ballistics calculator. This calculator's minimum target size is 2 inches. View Quote I though this was simple enough "Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. " |
|
Quoted:
No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. View Quote If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. |
|
I do mine at 25 yards. Anything closer, it will just get there quicker.
|
|
|
Quoted:
If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. View Quote View All Quotes View All Quotes Quoted:
Quoted:
No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. Wouldn't that be sorts like telling a new shooter to focus on speed before accuracy? |
|
Quoted:
If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. View Quote I agree that the actual difference in trajectories between all these zeros within 50 yards is relatively small... an inch or two. But theoretically and practically, what do we want? We have a margin of error that is acceptable for our trajectory (rise and drop). Pick what is acceptable for you. Half inch, 3/4 inch, or 1 inch? Then what is the maximum range you can keep that margin? Hint: it is the maximum point blank range. Your target size will be double your margin of error. Practically speaking, the near zero for pistol mpbrs is 4-8 yards depending on your target size. It is much easier to zero at 4-8 yards with a pistol than 25 or 50 yards. Not everyone is a gold-medal olympic pistol shooter, so zeroing at 50 yards might be difficult. |
|
Quoted:
Wouldn't that be sorts like telling a new shooter to focus on speed before accuracy? View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. Wouldn't that be sorts like telling a new shooter to focus on speed before accuracy? |
|
Quoted:
I agree that the actual difference in trajectories between all these zeros within 50 yards is relatively small... an inch or two. But theoretically and practically, what do we want? We have a margin of error that is acceptable for our trajectory (rise and drop). Pick what is acceptable for you. Half inch, 3/4 inch, or 1 inch? Then what is the maximum range you can keep that margin? Hint: it is the maximum point blank range. Practically speaking, the near zero for pistol mpbrs is 4-8 yards depending on your margin of error. It is much easier to zero at 4-8 yards with a pistol than 25 or 50 yards. Not everyone is a gold-medal olympic pistol shooter, so zeroing at 50 yards might be difficult. View Quote View All Quotes View All Quotes Quoted:
Quoted:
If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. I agree that the actual difference in trajectories between all these zeros within 50 yards is relatively small... an inch or two. But theoretically and practically, what do we want? We have a margin of error that is acceptable for our trajectory (rise and drop). Pick what is acceptable for you. Half inch, 3/4 inch, or 1 inch? Then what is the maximum range you can keep that margin? Hint: it is the maximum point blank range. Practically speaking, the near zero for pistol mpbrs is 4-8 yards depending on your margin of error. It is much easier to zero at 4-8 yards with a pistol than 25 or 50 yards. Not everyone is a gold-medal olympic pistol shooter, so zeroing at 50 yards might be difficult. |
|
Quoted:
I'd argue not, since the groups are pretty easily relatable to each other. Now if the guy couldn't stay on a 10" plate at 50 yards then I'd probably tell him to slow down and figure out what he's doing. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. If you can pepper a 10" target at 50 yards (keeping all the rounds on it at least) that's the same angular size as a 1" group at 5 yards. We're not talking about precision rifles here where you might zero at 100 yards and then go out ten or more times that distance. A pistol zeroed at 50 yards is probably not going to be used often even at that distance, and probably less frequently (and only for fun/practice) at distances even further. Working backwards from your 50 yard zero you'll find that the first time the bullet crosses the LOS is pretty close, and even at distances closer than that and in between LOS crossings you're only fractions of an inch different in elevation. Wouldn't that be sorts like telling a new shooter to focus on speed before accuracy? Fair enough |
|
I do 25yards for a standard pistol...and 10 for short barrels
I practice out to 35 metes with short barrels and 125 meters with full sized pistols...I can make shots out to 100 meters with ease... |
|
Quoted:
The actual difference in trajectories is even smaller than that, run some number through JBM and you'll see something like a 50 yard zero with a 9mm having a 1" sight height is well under an inch of variance from the LOS all the way out to a little past 50. As for the difficulty in zeroing at 25 or 50 vs a closer range, I'd argue that other than being able to see your POA clearly it's no more difficult either way. Going back to my precision rifle analogy, this isn't like trying to zero at 1000 yards where you've got a ton of environmental factors that you're fighting to get a consistent group. As long as a guy can see his POA (pretty easy if you're using a RDS) it's really not harder to hold a 10" group at 50 than to hold a 1" group at 5 yards. View Quote Why is a 50 yard zero better than any other distance? |
|
Quoted:
No. Although it doesn't make a huge difference, the zero should be for maximum point blank range of a really small target (1.5 inches). Especially for a defensive use pistol. Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. Zero pistols at 6-8 yards and forget it. View Quote I mean, you can say no all you want to, that's not going to change that those are the to most commonly zeroed distances for pistols. Though I like your use of projection supporting your idea based on what you think the capabilities of people reading your post are. The fun part of course being, that a pistols MBBR range is going to be farther than the two common zero ranges I pointed out (the chart I posted in fact, adhered to your arbitrary 1.5" standard), unless you're incorrectly defining Maximum point blank range and being group size, not what it's defined as. |
|
Quoted:
My "everything gun". Target shooting and home defense. Though I have a bed-side AR. I might reach for my AR before reaching for the pistol. View Quote View All Quotes View All Quotes Quoted:
Quoted:
What is the intended purpose of this gun? My "everything gun". Target shooting and home defense. Though I have a bed-side AR. I might reach for my AR before reaching for the pistol. I'd sight it for a 6-o'clock hold at 7 meters with your carry ammunition, if that's the case. For contact distance to 25 meters if you put the front sight on the sternum you're getting effective hits. For target shooting, it should be a 12-o'clock hold at 25 meters.... roughly. |
|
Quoted:
That is a big arc though, right? If it's zeroed for that distance, but you have a target up at 7 yards or a so, you're gonna have to aim for the pelvis to get a chest shot..... View Quote View All Quotes View All Quotes Quoted:
Quoted:
I do all mine at 25 yards. That is a big arc though, right? If it's zeroed for that distance, but you have a target up at 7 yards or a so, you're gonna have to aim for the pelvis to get a chest shot..... You're WAY overestimating the trajectory. WAY. |
|
go play on here
http://www.hornady.com/ballistics-resource/ballistics-calculator I use a BC of .15 as an average for pistol rounds to be conservative. and look here for 9mm http://www.ballistics101.com/9mm.php here for 45acp http://www.ballistics101.com/45_acp.php and 40S&W http://www.ballistics101.com/40_caliber_sw.php |
|
Quoted:
I mean, you can say no all you want to, that's not going to change that those are the to most commonly zeroed distances for pistols. Though I like your use of projection supporting your idea based on what you think the capabilities of people reading your post are. The fun part of course being, that a pistols MBBR range is going to be farther than the two common zero ranges I pointed out (the chart I posted in fact, adhered to your arbitrary 1.5" standard), unless you're incorrectly defining Maximum point blank range and being group size, not what it's defined as. View Quote The question is what distance should a pistol be zeroed at, not what distance do people commonly zero their pistols. I explained the methodology for finding a pistol zero in detail in a post after the one you quoted. Also, you are incorrect that pistol MPBR zeros are farther than 50 yards. They have near zeros of 4-8 yards. Why is a 25 yard or 50 yard zero better than an MPBR zero with an acceptable margin of error? What methodology was used to select 25 yards or 50 yards? Why? Also, you say I am projecting, but have you been to a public gun range? Yes, I would take an arfcommer over a public gun range person any day, but even arfcommers aren't world-class shooters as a whole. Have you done the 25 moa handgun challenge yet? http://www.ar15.com/forums/t_1_5/1900391_ARFCOM-25-MOA-ALL-DAY-Handgun-Challenge-2016---5-Free-Pmags-NEW-PRIZE--Free-Cerakote-Job.html |
|
|
Quoted:
Quoted:
I though this was simple enough "Zeroing at 25 or 50 yards is nonsense because most of you can't make a small enough group to know you have a zero at that distance anyways. " This. You can get a zero once you know your grouping size for that gun with the ammo you are using. No it is not as small a group as a rifle but it is measurable enough to adjust sights. |
|
Quoted:
You can get a zero once you know your grouping size for that gun with the ammo you are using. No it is not as small a group as a rifle but it is measurable enough to adjust sights. View Quote I agree with your premise. However, in my experience, most people that worry much about their pistol's trajectory aren't consistent enough for it to matter. If you can't group under 3" at 10 yards, then a 50+ yard shot is irrelevant, especially in self defense. |
|
Quoted:
I agree with your premise. However, in my experience, most people that worry much about their pistol's trajectory aren't consistent enough for it to matter. If you can't group under 3" at 10 yards, then a 50+ yard shot is irrelevant, especially in self defense. View Quote View All Quotes View All Quotes Quoted:
Quoted:
You can get a zero once you know your grouping size for that gun with the ammo you are using. No it is not as small a group as a rifle but it is measurable enough to adjust sights. I agree with your premise. However, in my experience, most people that worry much about their pistol's trajectory aren't consistent enough for it to matter. If you can't group under 3" at 10 yards, then a 50+ yard shot is irrelevant, especially in self defense. true...but every little bit helps both the new shooter and the expert... |
|
Quoted:
I have fully adjustable sights on my pistol. It's a .45 ACP What range should I adjust them for? 7 yards? 10 yards? View Quote As an "ArmyInfantryVet?" A.W.D. |
|
Quoted:
The question is what distance should a pistol be zeroed at, not what distance do people commonly zero their pistols. I explained the methodology for finding a pistol zero in detail in a post after the one you quoted. Why is a 25 yard or 50 yard zero better than an MPBR zero given an acceptable margin of error? What methodology was used to select 25 yards or 50 yards? Why? View Quote So, OP asked a specific question, what should he zero at. You came up with a complicated way predicated on math, and the assumption people are not good shooters. I just pointed out that the two most common standard zeros are 25 and 50, because they have been 25 and 50 for pretty much... ever. Which means if he sights it in for say, 25 yards, he can show up nearly anywhere with a reasonable expectation of accuracy. Indoor range, outdoor range No prob. From there he has his zero, he can always adjust it for shooting different ranges and keep the 25 yard marked. With 9mm velocity bullets a lot of them have less than an inch of drop at 50 on a 25 yard zero. Also, 25 yards is a VERY common distance to have to qualify at. Basically 25 yards is the benchmark of capability. So, two different methods. One based on the expectation people are held to for accuracy, one based on using math and bias to come up with a "good enough" distance that is a fraction of that. |
|
Quoted:
So, OP asked a specific question, what should he zero at. You came up with a complicated way predicated on math, and the assumption people are not good shooters. I just pointed out that the two most common standard zeros are 25 and 50, because they have been 25 and 50 for pretty much... ever. Which means if he sights it in for say, 25 yards, he can show up nearly anywhere with a reasonable expectation of accuracy. Indoor range, outdoor range No prob. From there he has his zero, he can always adjust it for shooting different ranges and keep the 25 yard marked. With 9mm velocity bullets a lot of them have less than an inch of drop at 50 on a 25 yard zero. So, two different methods. One based on the expectation people are held to for accuracy, one based on using math and bias to come up with a "good enough" distance that is a fraction of that/ View Quote So basically your answer is "because." Good, we've settled that. |
|
Quoted:
I agree with your premise. However, in my experience, most people that worry much about their pistol's trajectory aren't consistent enough for it to matter. If you can't group under 3" at 10 yards, then [color=#ff0000]a 50+ yard shot is irrelevant, especially in self defense. View Quote View All Quotes View All Quotes Quoted:
Quoted:
You can get a zero once you know your grouping size for that gun with the ammo you are using. No it is not as small a group as a rifle but it is measurable enough to adjust sights. I agree with your premise. However, in my experience, most people that worry much about their pistol's trajectory aren't consistent enough for it to matter. If you can't group under 3" at 10 yards, then [color=#ff0000]a 50+ yard shot is irrelevant, especially in self defense. or anything else. Easier to measure in inches vs feet. |
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.