Hi everyone, I have a Matech BIS on my M4 carbine and my Colt 6940. I want to Zero both rifles at 50 yards not 25 meters. Would I set the Matech BIS on the lowest setting 200 and zero it at 50 yards? I keep reading about the 25 meter zero with the sights, you set it on the 300 mark and zero at 25 meters, I do not want that, I want to zero at 50 yards. Thanks any info will help me out;)
The MATECH is made to use the 25m zero on. I would zero your Optic at 50 like you want and the MATECH at 25m. If you zero it at 50 the range graduation marks will be irrellivant. It is the same with any other sight with range correction such as the KAC. The only possible option would be to contact the MFG and see if they have data on the 50 yd zero. The other option would be zero it at 50 yds and leave it and forget about the range adjustment feature and act like its not there.
I set the Matech at 25 and the optic red dot at 100 just for testing at the range. Think of this with a 1/3 rd co-witness. 25-100 and the target rises from the front sight up to the red dot and back down from 100-200. Worked pretty well and anything over 200 I just flip the Matech as needed since I followed their sighting guidelines. I also have a laser set at 25 for quick acquisition if needed.
I could be all wrong in my thinking but I’m open to any new ideas.
Yes.
However, I highly recommend confirming zero at 200 if you can.
This will ensure that you have a good long-range zero and the difference at 50 will be too small to perceive anyway.
What’s a good target to use with the BUIS at 200m?
Thanks
I have used a few different targets.
The “Able” target is pretty good- 12" black circle. I have no idea where to source them though. What do you guys normally shoot at at 200?
I have also used 8" Shoot-N-See targets with a spotting scope so I didn’t have to trot 200 yards for adjustments. Some find the 8" circle hard to find when focusing on the front sight though.
A standard IPSC/IDPA target works well, and is pretty easy, but you might see some vertical stringing due to lacking a solid vertical point. I have stapled an 8" paper plate to the center of an IPSC for zeroing purposes with decent effect.
The 50/200 zero is pretty good. I like it and have all my AR’s zeroed to it. However, using that zero, your POA/POI with actual be at around 225 yards (There’s a bullet drop chart in one of the tacked threads), so it is always a good thing to reconfirm your 50 yard zero at 200 yards.
Wouldn’t sighting in per manufacturers instructions and then putting it on the 200m setting give you a “50/200” zero?
Isn’t that the whole point of having those graduations?
I guess someone with these could sight in at the 25/300 per directions and then set it on the 200m setting and confirm at either 200 or 50 to find out.
That 25m is a field-expedient BZO procedure designed in instances in which one does not have 300m to work with, and still rates a 300m confirmation. If you have 200m, you can set it at the 200m setting and still dial in the entire sight by shooting at KD.
Otherwise, since most publicly open ranges, indoors and outdoors, are ranged in yards and NOT meters, it’s generally easier for one to find a 50yd line, set this thing @ the 200m setting, and do the 50/200yd repeatable. I’d use the NRA HQ range in Fairfax as an example. One CAN send the target to 25m, presuming one bothers to convert the distance and punch in 82’ on the carriage…but most will just stab in 25yd/75’ and call it good. Shooting a 75’ target will NOT get you a 300m zero. That missing 7’ on the front end will mess you up pretty well on the back end.
If the OP is intending to use his Matech for his go-to sight, all it means is that his rear sight is more capable than the 50/200 zero he puts on it. It is a backup sight, only, it’s his call, and a reasonable one for the intended use.
All that said, though, Citpitch, I’m with you. I’d do the thing in meters according to it’s design because I violently resent having to think in yards at work, and refuse to do it with my own stuff. It’s not that big a deal to convert to a decimal-based measuring system.
Ok… back from the dead, here. If you set the sight to 200, zero at 50, then reconfirm at 200… are the distance markers on the matech of any use? I usually run a 50 yard zero on my rds and would like to keep things in non-metric measurements. 
clarification, anyone?
Bump. I understand the 50/200 sighting. Will the distance markers on the matech then be in yards and usable?