Saiga 308 is short cycling

[srknova74 0]

I aquired a Saiga 308 in a box. It had been dissaembled for conversion. It was missing a few things, so I got them. Finally got it all back together and went to fire it for the first time and it short cycles. Seems like the carrier is falling about 3/4" short of ejecting and loading another round. The only thing I can see is the carrier is hanging on the hammer, but everything I've read suggest that this is normal. I included a pic showing how far the carrier is going back when fired and a video of where it is hanging. I am really unsure whether it's struggling to get past the hammer or whether it's a pressure issue. Fires and loads great if I wanted a single action rifle.