1. I have heard that the Indian ammunition is variable in quality but I have used it with 100% sucess on my other FAL built on the Imbel metric receiver.

2. I have tried the gas plug position in the two ways that it will fit with no change.

3. I have tried the regulator at all values with no change

4. I have also heard that Century builds are of questionable quality but I may have misled you in that this is a build on a century imported Imbel L1A1 receiver.

5. I guess it could be called a short cycling problem as the bolt carrier does not appear to cycle at all.

6. I have checked the position of the gas hole into the barrel and confoirmed it is clear.