.223 From a 5.56 Chambered AR-15! Is There a Difference? 100 Yard Accuracy Group Testing!
This video details a 100-yard accuracy test comparing four different .223 Remington ammunition types fired from a 5.56 NATO chambered AR-15. The Ruger MPR with an 18-inch barrel and 1:8 twist was used. The test aimed to see how various bullet weights and types performed, with the 69-grain PPU hollow point boat tail yielding the best group size.












