The first issue that I ran into with the rifle was a magazine issue, while firing the rifle it would sporadically not strip the next round from the magazine. For the first couple mags worth I thought that it could have possible been the mags themselves were an issue being that they were from Tapco, however out of the 6 total mags (4 Tapco and 2 Surplus) that I had for the rifle the first time I took out, 5 of them were sharing this same issue. Sometimes it would just require a quick pull back on the charging handle to get the next round to load, and other times it would create a double feed.
While I am still new to diagnosing issues with the AK platform, but the time that I have spent converting the Saiga, and tearing down both of the AK's that I have been using; I feel that I have a pretty good understanding of what the issue is. When I was out at the range I set the rifle down on it's back and checked to see how well the magazine catch was fitted to the mags that I was using. I know that when I was doing the conversion of the Saiga I ended up having to replace the original mag catch because I had taken too much metal off and the mags were now wobbling front to back and side to side (yes I know most AK's have side wobble). 5 of the magazines I was running that day had some front to back wobble and the 1 that I was not having any issues with had zero wobble. This lead me to believe that the magazine catch was the cause of the issue.
Since Waffen Werks offers a 1 year warranty on all of their rifles I emailed them while I had some down time at the range, and the cool thing was I had a response from Keith at WW by the time I got home. Even though it was a late Saturday afternoon he took the time corresponding with me via email about the loading issue. He agreed with me that it is most likely the magazine catch and had a UPS shipping label emailed to me so they can get it into the shop and fix the issue (all on their dime).
The second issue I have had is getting it sighted in, out of the box it was very right and very low, again this has been another learning experience for me as I have been trying to get it sighted in perfectly. This last trip I made before sending it off to WW it was getting very close to being dead on, and even though I was having to compensate for the sights being off like they are right now once I figured out where to aim, it was ringing the gong at 100 yards with every shot, and when we went down range to grab the paper target stands I was happy to see that all of the shots had hit within the size of a paper plate. Even though it's not completely sighted in I can tell that it's an accurate USA barrel, and I have yet to notice any keyholes in the targets.
I will be posting a follow up once I receive the rifle back from Waffen Werks, I am anxiously waiting to get it back so I can head out to the range again and run the surplus mags and the 45 round surplus mag that I just picked up recently.