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CS86 · April 8, 2014, 11:38 PM

I have a good understanding of the difference between .223 and 5.56, but a friend and I are trying to figure something out in the Hornady manual.

Cross referencing load data in the Hornady manual between the .223rem, .223rem service rifle, and 5.56 nato is a bit confusing. We are trying to figure out what the loads in .223rem service rifle are designed for and what they aren't designed for. He just got an AR .223/5.56 and I've only used the .223 data for light grain bullets in a bolt action.

Another question I had is how does one tell the difference of the brass if it isn't stamped .223 or 5.56? Can you weight it and get an accurate figure?

April 8, 2014, 11:38 PM	#1
CS86 Senior Member Join Date: February 28, 2012 Location: South Dakota Posts: 224	.223 service rifle I have a good understanding of the difference between .223 and 5.56, but a friend and I are trying to figure something out in the Hornady manual. Cross referencing load data in the Hornady manual between the .223rem, .223rem service rifle, and 5.56 nato is a bit confusing. We are trying to figure out what the loads in .223rem service rifle are designed for and what they aren't designed for. He just got an AR .223/5.56 and I've only used the .223 data for light grain bullets in a bolt action. Another question I had is how does one tell the difference of the brass if it isn't stamped .223 or 5.56? Can you weight it and get an accurate figure?