Converting M200 Blanks into .223 Remington Brass

I have been experimenting with converting M200 blanks into .223 Remington brass. After halving several cases and doing my own research I came to the conclusion that it was safe. It has worked well for me, however it may not work for you. You should do your own research and not rely on me to do it for you.
Some of the information I used to make my decision to try this came from this discussion on Arfcom: www.ar15.com/forums/t_6_42/362...

[@donball5918]

Another good use for the blank brass is converting them to cases for 7.62x25mm Tokarev.

[@JnJTrueOutdoorAdventures]

Very good information!! I take the M200 556 blanks and convert into 300 BLK and I saw no reason why you couldn't make them into usable 223 cases for reloading. Don't let anyone tell you that the blanks are inferior cases. The only difference in them is the rose crimp and the nurling around the case. Thanks for sharing this video.

[@SladeMcCuiston]

J & J True Outdoor Adventures Thank you!

[@harleyfee364]

Actually, a big difference is the case necks are not annealed not tested to the same parameters as live 556 brass is. You can convert M200 into live 223, and even 300 AAC, but to extend the life span beyond 4-7 reloads (223) you should anneal the case necks. Otherwise you will develop neck splits in .223, especially if you are close to max loads.

[@SladeMcCuiston]

Mr. Fee, I am aware of this however the brass was so cheap if it fails it was still worth it.