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USA
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Posted: 2/2/2019 9:41:00 AM EDT
[#1]
According to the zero scheme of -6 for a 100 yard zero, the drum should click 6 times below 6/3
Not sure where the 8 came from. |
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MO, USA
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Posted: 2/2/2019 11:31:35 AM EDT
[#2]
I think they suggested 8 for a little room of play in case the dial didn't bottom out exactly at 6 notches.
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USA
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Posted: 2/3/2019 4:48:01 PM EDT
[#3]
it didn't need any extra
so I just kept it at -6 now, does anyone have a good idea about how to mark these on my rifle? the clicks for a 20 inch a2 style detachable carry handle 25 meters: “Z” setting 50 yards/200 meters “battle zero”: “6/3 -4” 50 yards: “6/3 -4” 100 yards: “6/3 -6” 150 yards: “6/3 -6” 200 meters: “6/3 -4” 300 meters: “6/3” (or “8/3″ with fixed carry handle, 20” barrel rifles) 400 meters: “4” 500 meters: “5” 600 meters: “6/3” I am not using a football wristband. Looking for other suggestions to just have them written on something and then applied to rifle, or written straight on the rifle (once I get it zeroed in of course) I also plan to put the info more succinctly if that matters 25-z 50/200 bzo-4 100/150-6 300-6/3 400=4 500=5 600-6/3 |
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USA
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Posted: 2/6/2019 12:05:00 AM EDT
[#4]
Quote HistoryOriginally Posted By togadelic:
it didn't need any extra so I just kept it at -6 now, does anyone have a good idea about how to mark these on my rifle? the clicks for a 20 inch a2 style detachable carry handle 25 meters: “Z” setting 50 yards/200 meters “battle zero”: “6/3 -4” 50 yards: “6/3 -4” 100 yards: “6/3 -6” 150 yards: “6/3 -6” 200 meters: “6/3 -4” 300 meters: “6/3” (or “8/3″ with fixed carry handle, 20” barrel rifles) 400 meters: “4” 500 meters: “5” 600 meters: “6/3” I am not using a football wristband. Looking for other suggestions to just have them written on something and then applied to rifle, or written straight on the rifle (once I get it zeroed in of course) I also plan to put the info more succinctly if that matters 25-z 50/200 bzo-4 100/150-6 300-6/3 400=4 500=5 600-6/3 |
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USA
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Posted: 2/6/2019 3:00:42 PM EDT
[#5]
Just thought of another question
I have set the rear drum as molon said. For initial zero should I move the front sight to even it out? If so, which way to rotate? |
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USA
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Posted: 2/9/2019 1:06:36 PM EDT
[#6]
It was dead on at 25, didn't even need to mess with it, can't wait to try the other distances now, thanks for the help
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USA
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Posted: 2/9/2019 2:30:06 PM EDT
[#7]
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USA
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Posted: 2/17/2019 6:54:21 PM EDT
[#8]
well
finally got to go to a 100 yard range today rotated drum to -6 bam--right on thanks molon now if my old eyes can actually see that far---time for some optics? hmmmmm |
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USA
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Posted: 5/20/2019 3:38:22 PM EDT
[#9]
Anyone have an idea how to doribz right for a 10.7inch pistol? With Fsb and detach carry handle, ?
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Posted: 5/20/2019 4:26:01 PM EDT
[#10]
Quote HistoryOriginally Posted By togadelic:
Anyone have an idea how to doribz right for a 10.7inch pistol? With Fsb and detach carry handle, ? |
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USA
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Posted: 5/20/2019 4:45:59 PM EDT
[#11]
Quote HistoryOriginally Posted By Lancelot:
The same as any 6/3 rear sight. |
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Posted: 5/20/2019 7:09:20 PM EDT
[#12]
The reduced velocity and coarser adjustment from sight radius may negate each other.
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IL, USA
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Posted: 5/22/2019 6:12:48 AM EDT
[#13]
Quote HistoryOriginally Posted By togadelic:
I seem to remember there being different adjustments for Rifle length vs carbine, assume there would be more for a 10.5 inch?? |
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USA
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Posted: 5/22/2019 3:39:50 PM EDT
[#14]
Quote HistoryOriginally Posted By mickdonaldson: It's all math based on muzzle velocity and ballistic coefficient of whatever round you are firing. Can you just zero at 50 with the sight at 6/3? Unless firing M855 out of a 14.5" (2800ish fps) all the "universal numbers" are out the window anyway - IIRC, Fusion MSR out of my 11.3" is a 50/180 primary/secondary zero. I like getting the most accurate data as I can, for my MV and BC, plugging it into a Ballistic Calculator for different zero ranges, pick the one I like, zero, then confirm at varying distances if possible. |
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Posted: 5/22/2019 5:09:31 PM EDT
[#15]
Quote HistoryOriginally Posted By mickdonaldson: It's all math based on muzzle velocity and ballistic coefficient of whatever round you are firing. I like getting the most accurate data as I can, for my MV and BC, plugging it into a Ballistic Calculator for different zero ranges, pick the one I like, zero, then confirm at varying distances if possible. |
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IL, USA
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Posted: 5/22/2019 7:31:29 PM EDT
[#16]
Man, this thread vindicates my decision to get rid of A2 sights on all of my flat-top uppers! Using MaTech, KAC Micros, and Magpul Pro's in their place now.
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Posted: 5/22/2019 8:59:50 PM EDT
[#17]
Quote HistoryOriginally Posted By Torch-36:
Man, this thread vindicates my decision to get rid of A2 sights on all of my flat-top uppers! Using MaTech, KAC Micros, and Magpul Pro's in their place now. |
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USA
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Posted: 5/22/2019 9:14:54 PM EDT
[#18]
Quote HistoryOriginally Posted By HighpowerRifleBrony:
The reduced velocity and coarser adjustment from sight radius may negate each other. |
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Posted: 5/22/2019 10:33:05 PM EDT
[#19]
Quote HistoryOriginally Posted By mickdonaldson: It's all math based on muzzle velocity and ballistic coefficient of whatever round you are firing. Can you just zero at 50 with the sight at 6/3? Unless firing M855 out of a 14.5" (2800ish fps) all the "universal numbers" are out the window anyway - IIRC, Fusion MSR out of my 11.3" is a 50/180 primary/secondary zero. I like getting the most accurate data as I can, for my MV and BC, plugging it into a Ballistic Calculator for different zero ranges, pick the one I like, zero, then confirm at varying distances if possible. |
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Posted: 9/3/2019 8:50:53 PM EDT
[#20]
has anyone put a laminated dope card for various ribz 8/3, 6/3 for a2 and detachable carry handle on the non roll mark side of their magwell? if so, how did you stick it on there?
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Posted: 9/11/2019 11:12:45 PM EDT
[#21]
can anyone let me know what happened to molon? I want to thank him.
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Posted: 9/11/2019 11:33:48 PM EDT
[#22]
Quote HistoryOriginally Posted By togadelic:
can anyone let me know what happened to molon? I want to thank him. I dunno if he went to The Other Site, or if he quit there too. |
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Posted: 9/11/2019 11:36:49 PM EDT
[#23]
Quote HistoryOriginally Posted By HighpowerRifleBrony:
Retards deny science and stats. Molon rudely corrected them like an infallible god, somewhat understandably, and tired of it. I dunno if he went to The Other Site, or if he quit there too. Quote HistoryOriginally Posted By HighpowerRifleBrony:
Originally Posted By togadelic:
can anyone let me know what happened to molon? I want to thank him. I dunno if he went to The Other Site, or if he quit there too. |
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Posted: 9/13/2019 1:25:26 AM EDT
[#24]
the more and more I shoot
the more I like the ribz I am not the best at 100 yards yet-- my skills are improving---my eyes are not but with ribz----I can dial in minute of man if I use a blitzkrieg front sight triangle considering I in all likelihood won't engage a real target in hd situation shtf under 100 yards---a battle sight zero like ribz is just so KISS, I can't help to fall in love with it |
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Posted: 9/22/2019 3:21:42 PM EDT
[#25]
didn't this used to be stickied?
this would be helpful for new shooters learning how to shoot irons |
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Posted: 1/24/2020 9:16:44 AM EDT
[Last Edit: Boom_Stick]
[#26]
Where'd the PICs in OP go??!
BTW, dont know if anyones seen this yet, but its a very thorough writeup on army/marine/ibz/ribz zero schemes, their pros and cons and ballistic data. Its helped me understand the ar15s sights better https://savannaharsenal.com/2017/04/08/how-to-zero-ar-15-a2-type-sights/ |
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CA, USA
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Posted: 3/26/2020 12:34:18 AM EDT
[#27]
Thank you for the edit @molon
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Posted: 3/26/2020 1:07:16 AM EDT
[#28]
Quote HistoryOriginally Posted By uniform64: Thank you for the edit @molon Yes, thank you! |
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Posted: 3/26/2020 10:29:27 AM EDT
[#29]
thank you @molon I learned a TON from reading your stuff, great info
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Posted: 3/26/2021 6:30:08 PM EDT
[#30]
Quote HistoryOriginally Posted By uniform64: Thank you for the edit @molon All the broken picture links in the original post should be working now. Let me know if any of the pics still aren't showing. |
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Posted: 3/26/2021 7:31:01 PM EDT
[#31]
It sure feels good having @Molon back and active.
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Posted: 3/26/2021 9:00:44 PM EDT
[#32]
Quote HistoryOriginally Posted By PFran42: It sure feels good having @Molon back and active. |
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Posted: 3/26/2021 9:49:44 PM EDT
[#33]
Quote HistoryOriginally Posted By TexasSurfNTurf: yes thank you @molon |
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Posted: 3/26/2021 10:01:52 PM EDT
[#34]
Thank you @Molon
You are a true credit to the shooting sports community. |
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Posted: 3/28/2021 4:21:39 PM EDT
[Last Edit: Boom_Stick]
[#35]
I'm confused by the 8/3 +3 25yd poa=poi
If you're zeroed with the RIBZ and all sight schemes are intact (roughly), shouldn't the 8/3 setting give you a 25yd poa=ppi because near zero for 300yds/m is 25ish yds? Thats per the RIBZ info here. BTW if you haven't read this page thoroughly you're missing out. https://savannaharsenal.com/2017/04/08/how-to-zero-ar-15-a2-type-sights/ +3 seems like a lot if the 300 near zero is 25ish yds. |
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Posted: 3/28/2021 5:47:29 PM EDT
[Last Edit: Molon]
[#36]
Quote HistoryOriginally Posted By Boom_Stick: If you're zeroed with the RIBZ and all sight schemes are intact (roughly), shouldn't the 8/3 setting give you a 25yd poa=ppi No. because near zero for 300yds/m is 25ish yds? No, it isn't. Thats per the RIBZ info here. No, it isn't. Here are the actual trajectories that I posted in the original post of this thread. 25 yard zero  25 meter zero  300 meter zero  |
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Posted: 3/28/2021 6:54:09 PM EDT
[#37]
Quote HistoryOriginally Posted By Molon: Here are the actual trajectories that I posted in the original post of this thread. 25 yard zero https://www.ar15.com/media/mediaFiles/28568/M855_25_yard_zero_from_20_inch_barrel_-1301862.jpg 25 meter zero https://www.ar15.com/media/mediaFiles/28568/M855_25_meter_zero_from_20_inch_barrel_0-1301861.jpg 300 meter zero https://www.ar15.com/media/mediaFiles/28568/300_meter_zero_02-1301859.jpg thank you molon you are a treasure |
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Posted: 1/23/2022 2:12:04 PM EDT
[#38]
Quote HistoryOriginally Posted By togadelic: thank you molon you are a treasure De nada.  ... |
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Posted: 5/25/2024 1:01:30 AM EDT
[Last Edit: urbankaos04]
[#39]
@Molon
Glad the pics are back up and that this thread is still here because I’m about to pull the trigger on a 16” H & R government model upper, which has A2 sights. Now, about that book you’re gonna put out… 
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Posted: 5/25/2024 1:11:39 AM EDT
[Last Edit: Bigger_Hammer]
[#40]
OST.
Bigger_Hammer 
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