Is an AR-15 actually chambered in 5.56x45 NATO or is it made just to handle the .223 Remington since 5.56 is a military cartridge? - Quora
![556x45mm Nato Stok Fotoğraflar & Boya Kalemi'nin Daha Fazla Resimleri - Boya Kalemi, Cephane, Eğitim - iStock 556x45mm Nato Stok Fotoğraflar & Boya Kalemi'nin Daha Fazla Resimleri - Boya Kalemi, Cephane, Eğitim - iStock](https://media.istockphoto.com/id/658259568/tr/foto%C4%9Fraf/5-56x45mm-nato.jpg?s=1024x1024&w=is&k=20&c=XCBh1EK1vYl50F1syiDnc-dcC6-w_ZA1H--t3SMA_nM=)
556x45mm Nato Stok Fotoğraflar & Boya Kalemi'nin Daha Fazla Resimleri - Boya Kalemi, Cephane, Eğitim - iStock
What are the differences between the NATO 5.56mm round and the Russian 5.45mm round (performance)? - Quora
![6 Dummy Trainer NATO 5.56x45 and .223 Remington Ammo Rounds - $9.95 : Cool F/X, stuff that's too cool 6 Dummy Trainer NATO 5.56x45 and .223 Remington Ammo Rounds - $9.95 : Cool F/X, stuff that's too cool](https://www.coolfx.us/images/556_223_dummy_01_03.jpg)