Gentlemen! Thanks again for your valuable advice.

Here is an image with best possible measurments, that could be made with vernier calipers. I tried to measure at very edges, so that the curve of wall should not effect the readings.


@Greg
Yes I am in Pakistan. I am not sure of Shaheen standards, there is no mention of it on the boxes. 31 gms load is mentioned. Will soon post loads of all other shells used.

@Roy
What was the difference between 3 grades?
A friend has Burrard's book and I will get it for diagnosing method.