Is there a set standard for match grade ammunition? example: If one manufacture is selling 7.62x51 168 grn match, and a completely different manufacture is selling another 7.62x51 168 rgn match, does each one have to meet certain specifications before distributing them? Or is there no specification what so ever? I know that know matter what the data will be different. I am interested in the production of the ammunition. If there is any more info required to answer this I will go more in depth. GOD BLESS!