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akjunkie
02-11-2012, 7:55 PM
I have a DPMS 20in Flat top w/ 1:9 twist.
I'm using M193 55gr.

Installed a new Matech BUIS today.
I intend to use the IBZ.

Set BUIS to lowest setting @ 200
Set Target @ 50 YDs.

With "Above" method the rest of my "Elevations" should work?
ie: Target @400yd, Set BUIS to 400 and so on, etc.

Fate
02-11-2012, 8:30 PM
Didn't you get the instruction sheet?

For a full length rifle, turn the knob until the line on the left side aligns with the line between 300 and 400.

Then use a 25m zeroing target at 25m (not yards) and center your rounds by adjusting the front sight post and the BUIS windage adjustment knob. Then you'll be zeroed so your distance matches the numbers on the sight.

I love my Matech.

akjunkie
02-12-2012, 1:57 PM
I prefer the IBZ. 50/200yd zero. Just need to know if it is feasible with the Matech.

GettoPhilosopher
02-12-2012, 3:04 PM
Here's my opinion on it....feel free to ignore it if you like. :)

It's a waste of that sight to use a IBZ. If you want to use a calibrated Matech sight, calibrate it. :P

Now, you are going to have to adjust based on your gun. I ran everything through a ballistics calculator (based on it being calibrated for a 20" firing M855), got the drops for the different settings, and converted to M193 and yards (I know, I'm ridiculous :P) and ended up with this table for my 16" Dissy (Zeroed on the line for the 20"):


Sight Setting (600m BUIS; 55gr; 340m Setting)____Known Distance to Target________POI
340m______________________________________25y_____ _____________________-0.2
200m______________________________________50y_____ _____________________+0.1
200m______________________________________100y____ _____________________+3.0
200m______________________________________200y____ _____________________+0.1
300m______________________________________300y____ _____________________+0.9
400m______________________________________400y____ _____________________+2.1
500m______________________________________500y____ _____________________+2.9
600m______________________________________600y____ _____________________+3


So far, it works for me. (Tested on steel at Angeles out to 300y, I can't shoot farther without a spotter to tell me if I hit or not, not the best eyes or ears ><)

akjunkie
02-12-2012, 6:23 PM
200m................50yds........... +0.1

So basically what U are saying is. If I do the 50/200yds zero. That is equivalent to the 340M/600 zero?

My Matech didnt come with Instructions. I bought it new from a fellow Calgunner. He had a whole bunch.

So the "White" line between 300/400M is equivalent to 340M and not 350?

GettoPhilosopher
02-12-2012, 6:46 PM
200m................50yds........... +0.1

So basically what U are saying is. If I do the 50/200yds zero. That is equivalent to the 340M/600 zero?

My Matech didnt come with Instructions. I bought it new from a fellow Calgunner. He had a whole bunch.

So the "White" line between 300/400M is equivalent to 340M and not 350?

The drops are calibrated for a certain range from a certain cartridge. Change that calculation in any way and it changes everything. That's the chart I got for a 16" shooting 55gr M193 FMJ. Your combo will be different.

Sent from my SPH-D710 using Tapatalk

akjunkie
02-20-2012, 3:16 PM
finally got a chance to zero my rifle today with the Matech.

Using 55gr M193.
Target @ 25 Meters.
Matech set @ the White Hash mark between 300/400.
After I got the Matech dialed in I set the Irons to 200 and was shooting Steel Pigs @ 200yds.

Seems the above Zero method calibrates the Matech from 200-600.
I'm happy with it.