Hey all, new to this forum but I have had 2 saiga 12s and a 7.62.. 1 is completely custom converted from mach1including polished bolt, realigned gas ports and low recoil conversion parts. The other is a factory sgl1207. the saiga 12 has disclaimers on just about every websight that sells them stating that low power or low recoil shells are NOT recommended at all. The gun is made to cycle full power shells. I use 2 3/4 federal flight control shells and my guns both eat em like a fat kid eats cake. Some will chew threw bulk pack ammo but some will not no matter how much tinkering you do with it.