204 for yotes

204s are finicky to get to feed right in ARs. I know you have to use metal mags or grind the rib out of a Pmag but they are still less reliable than 223 based cartridges. Half the 204 ARs people own and say they feed fine bend the brass case slightly when chambered. It's just a hassle getting it right and even then you have to remember to only put 8 in your 10 round mag. 20 practical is simple and easy. No fireforming required. Same process as 223 while using abundant 223 brass. All with very minimal if any performance loss. Also when seating certain bullets 204 can exceed mag length where 20 prac will allow you to seat further out if needed. My bolt rifle 204 ammo doesn't fit in AR mag.
 
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