Thanks!! Might give that a shot!
I've been making do with 'extended holds' as far as the sights are concerned, elevating the front post and using the rear notch as reference the further I went. I'm pretty confident I can land a shot up to 400 yards this way, but beyond that I'll have to look into making spacers for sure. I'll take some photographs of the holds I used for the 200 and 300+ yard shots.
Gonna be pretty tough to verify the hits, the round seemed to really tank on energy past the 200 yard mark and that last video was barely audible enough for the phone to pick up. Should the weather hold up this weekend, I'm going to spend an afternoon and see how far this thing will go.
Edit:
Decided to take the photos now.
So, here's the style of sight I have.
We'll call this one the "AK" style rear sight. I see some with SKS style adjusters, Some AK, and some with Mosin ones. Mine only goes out to 100 meters, and the graduations do appear to be accurate from the testing I have done with SV 40 grain projectiles. Stuff around 1040/1070 FPS is what these guns really seem to eat right up.
This is around the hold I used for the 200 yard shot. Bottomed out the front sight post within the rear notch and the elevation seemed to be just about right. I covered the target and was able to land hits at 200 this way. I could probably fine tune this further for a proper 6 o' clock hold but this worked for me.
This is the hold for the 330 yard shot. Was covering the target again, and it took me a couple of rounds before it hit true, but from what I could see the rounds were all landing just shy of the plate every time.
And here's the target used. Picked it up fresh the other day, so each lead splatter here is from this last shooting session.
I had less than an hour to futz around with this since the sun is starting to get away from us this time of year, but im pretty confident with these holds so far!