Fed brass vs fed m1a stamped brass

[InfScout1/69]

Any differences besides the crimped primers on the m1a brass? Should I load them the same way or seperate? Here's the pic of the 2

 

[buffybuster]

The ones I have are the same as standard FC brass, except for the crimped pocket.

 

[InfScout1/69]

Any difference in case volume?

 

[buffybuster]

Any difference in case volume?

Not with the ones I have. Weight is within the variance and volume is the same. I think the different headstamp was to denote the powder burnrate was tuned to the M1A gas system. The brass is standard FC, which means heavier but rather soft.

 

[InfScout1/69]

Thx man.. I'll try loading them all the same and see if they shoot the same or not