Jgarza25

I bought a Saiga converted by RWC some years ago. Model IZ132Z. Since then I have been having problems with it. It misfeeds approx twice for every magazine. I have pmags and us palm mags for it. Somehow the bolt rides a bit over half of the casing. I use tula ammo and golden tiger fmj. Ive shot about 900 rounds total since I got it new. It has a bullet guide(welded). I cannot find the problem. Any advice please?