PSL Optic Zero ?

Somewhere i cant recall where there was a specific tutorial to zero the PSL scope, I thought I printed a copy and may have, but with moving to the new farm I may have misplaced it, anyone know where that thread may be?, I do remember there was a specific hold on target at a specific distance in order for the reticle to match the turret adjustments.....or is it like a PSO and I am over thinking it?

Overthinking a bit maybe, I don't recall anything special about the LPS/TIP2

Should just shoot from 100m, move reticule to point of impact and then loosen the top screws to slip the silver drum back to 1. Sometimes you need to pull up a bit on the black dial on top in order for the drum to move freely.




Z

That is how i did my POSP on my RPK, and may just go that route, I definatlely recall a tutorial ...somewhere because I modified a couple of targets and aiming holds to do this, basically it was a block grid at the 6 o'clock hold position and POI was approx 4.7 inches above to acheive zero, there was also a windage value of similar measurement....it seemed to work well but after yesterdays range outing shooting the 300m ISP's at 430 yds it was not performing well so I wanted to re zero....may just go with the standard method....thanks TX

I'm definitely not claiming I'm an expert on them (far from it), but in my experience I've zeroed them like the PSO and they've worked fine out to 300m that I've used them at. Honestly I don't have nearly as much trigger time on the LPS as I do with other PSO/POSP optics, mine didn't come with a manual either.

What you're saying there sounds like it's creating a 400-500m-ish zero (whatever the drop is for 4.7 inches) so I'd think all you'd have to do is find what drop corresponds to what distance you want as your zero and go from there. Not sure how that affects the turret BDC or the 2nd and 3rd chevron's though, that's a little hazy.

I would think if you zeroed 100m POI same as POA the turret and chevrons would be working properly like the PSO. If you created a 500m zero by having POI higher than POI at 100m you might be throwing off the turrets and chevrons but getting a quick and simple POA to get hits from 0-500m (similar to the AK74 400m zero). Hard for me to say because I haven't seen the manual



Z

Now you see why I wanted to find that info LOL, supposedly the zero at POI is intended to correspond with the turrets, and before yesterdays shoot I thought worked as it should have, it was in the erly spring when I did the initial zero with that procedure, it was quite specific as I mentioned, however maybe THAT information was inaccurate, It may have even been something Fortier had posted or written, I just cant recall, i will say this though, at 430 yds I did not shoot anyone elses targets and they were all close in line each board is about 20 inches wide and there were 8 shooters at a time, a couple of guys thought it was shooting high, but until I can get out agian with some KD targets to duplicate the shooting...and we were doping winds of 3-4 MOA left..that always helps with a 4x scope at 400+..lol

I can definitely see that now

So you have me really curious now too, I would love to see the manual. If Fortier is involved maybe you can email him to see if he has a copy?



Z

I am guessing David may have written the basic info in one of his SGN articles I just cant remember where it was I read and I thought made a copy for reference...two factors are at play 1 recent move and chaos to get the vault room and its contents organized ( i usually keep this type of info cataloged pretty accurately) and 2 I am getting older haha.....and this info was not in a translated manual format i think it was just taken from it, thats why its making me crazy i cant find/recall it

Also being discussed here: http://www.ar15.com/forums/t_4_79/138506_Proper_PSL_scope_zeroing_.html

Assuming that a PSL with standard ball is about 3 MOA on a good day, your looking at groups around 15 inches at 500, and more time for things like wind and slope to play a part. Your zero might be fine. Shoot something like a big steel plate and rely on sound feed back for hits, don't get too wrapped up on groups and you'll be much happier with your PSL's ability to function as an SDM rifle.

will do, fwiw it does seem to be a much more forgiving steel banger and truthfully I was not expecting the accuracy to be anything like my M1A, however i did expect a bit better than i got...I will play with it a bit more as time allows...thanks for all the responses guys

On the PSOP with the 20 hash mark elevation turret you zero at 100m with it a half click past "1" (between 1 and 2).

When that is done, the index marks theoretically correspond to range out to 550m, at least with minute of man precision. Past that you would need to start adding in more elevation.

However in practice, the BCs and velocities on various 7.62x54R rounds vary significantly. For example 7N1 has a 152 gr bullet with a BC of .498, while various 148 gr light ball rounds will have BCs ranging from .325 to .538.

Consequently, once you zero at 100m, you'll need to confirm at 300m (a soviet practice as well). Once zeroed at 300m you should be close enough at ranges to 500m to spot the round and correct if needed.

Copyright © 1996 - 2013 :: AR15.Com LLC :: All Rights Reserved.
Any use of this content without express written consent is prohibited.