Nice group and range!I built an ar15 in the 7.62x39 format and all I can say is , its a fun shooter , highly accurate , ect. , although you will run into problems with finding a magazine that feeds properly, I have a 10 round asc magazine in it , it likes to only hold 8, if you put more you will have problems. I tried the 30 round asc mags as well they seem to only function properly with about 15 rounds , if you load them down all the way to 30 it will only properly feed the first half of the magazine , if you only load half the magazine it will feed that half properly.
I am not sure if that is the same case with the vke-52 , but from what im reading if you use anything other than an ak47 or mini 30 magazine you wont be able to feed 7.62x39. does the vke-52 accept ak47 magazines or mini 30 magazines.