I've been zeroing the 74s I have at 23 yards with the rear leaf on "3" giving me battle sight zero of 300 meters..........are the ballistics of 5.56 close enough to do the same thing with a AK101s and 102s.  I did some searches but wasn't hitting on any clear results.

The zero procedure is the same for every AK

The rear sight block elevation ramp is different for 5.45 rifles versus 7.62x39, but as far as I know the ramp is most likely the same between 5.45/5.56 given that the two cartridges do have almost identical ballistics.

From the articles: The 300 meter zero looks like a great way to zero the rifle as the near zero is an easy to shoot 21 meters (23 yards). Simply set up a target at 21 meters, set your sights to “3”, and zero the rifle. You can then verify zero buy moving the sight to the “1” setting and shoot a target 100 meters (109 yards) away.

Expected 300 meter zero trajectory:
50 meters (54.7 yards): + 2.4?
100 meters (109 yards): + 5.4?
150 meters (164 yards): + 7.0?
175 meters (191 yards): + 7.0?
200 meters (218 yards): + 6.7?
225 meters (246 yards): + 5.8?
250 meters (273 yards): + 4.5?
275 meters (301 yards): + 2.6?
300 meters (328 yards): POA = POI
325 meters (355 yards): – 3.12?
350 meters (382 yards): – 6.9?
Summary: This zero has a great near zero to use for setting up the rifle. The trajectory looks like it is probably the best set-it-and-forget it “battle sight zero” to use. The 200 meter zero drops off to quickly after 250 meters, and the 400 meter zero trajectory launches the bullet like a rocket. The 300 meter zero trajectory will provide you hits +/- 7? all the way out to 350 meters. This is not too far different from the US Army’s 25/300 meter trajectory with M855 5.56x45mm 62-grain FMJ ammo fired from a M4 carbine, or the 18/247 meter “Battle Setting” trajectory from a 7.62x39mm AK-47. Use the Soviet method of aiming “belt buckle” level on a humanoid target and to achieve abdomen and chest hits out to 300 meters. Wow.


https://savannaharsenal.com/2016/04/23/how-to-zero-the-kalashnikov-ak-47-ak-74/#7.62%20x%2039%20mm%20Ballistic%20Trajectories

https://savannaharsenal.com/2016/04/23/how-to-zero-the-kalashnikov-ak-47-ak-74/#AK-74%205.45x39mm%20Bullet%20Trajectories

I would still zero the rifle at 100 yards, meaning 2” low at 25 yards (set the rear to 100). Then see where you are at 200 with the rear set to 200, etc.

I will check Robski’s manual when I get home.

https://shop.akoperatorsunionlocal4774.com/AK-Bootcamp-Book-NEW-EDITION-AK-Bootcamp-Book-NEW-EDITION.htm