i bought an olympic ar-15 243 wssm upper. the gun would not eject the spent shell, or if it did, the bolt wouldnt go back far enough for it to pick up the next round. I sent it back and they found out that the gasport was off of center by 9 degrees. they said that it burnt a hole in the gas block and they would have to replace both the gasblock and the barrel.
Well i got it back all i had to pay was shipping to them. the barrel was black when i sent it to them and the one i got back was a stainless steel grey color. I broke in the barrel and have been trying to work up a load for it. best group so far has been .58 at 100 yards. however, i havnt found a reliable load that i like so far. the spent brass is caked with powder residue and nicked pretty bad. factory and reloads alike.. not sure what this is from but is has been like that ever since i got it back from them.
Yoshie, I am not familar at all with your rifle, but that does not look right at all. It looks like you have sever blow back in chamber, not sealing up, or timing. But it looks way wrong. I only have a few friend w/ar type and dont look anything like your picts.
I recieved a new barrel blank a few yrs back from a very respected barrel company.First thing I did was run the borescope down it (do it with all of them)and found excessive tool marking.Contacted them,got the OK to send it back and recieved a new one in two days with an apology that it even made it out the door.Dont take anything for granted.
The Constitution shall never be construed to prevent the people of the United States who are peaceable citizens from keeping their own arms -Samuel Adams