全世界的步槍，為何都用30發彈匣？從STG-44，到AK-47，再到M-16， 20發彈匣輕便不夠用，50發火力猛卻太笨重！

00:00 摘要
00:37 30發步槍彈夾容量
04:00 為何成主流
07:20 優勢與缺點

全球 99% 軍隊都在用的 30 發彈夾，竟是百年戰場血的教訓！美軍測試證明：50 發彈夾導致士兵機動性下降 20%，俄軍秘密武器為何被 30 發完爆？點擊關注，解鎖現代戰爭背後的科學真相：從人體工程學到戰術體系，從斯大林格勒到阿富汗戰場，看 30 發如何成為步兵永恆的黃金標准！這裡有你絕對不知道的槍械進化史！

The 30-round magazine used by 99% of the world's armies is actually a bloody lesson learned on the battlefield for a hundred years! US military tests have proved that a 50-round magazine causes a 20% decrease in soldier mobility. Why is the Russian army's secret weapon completely defeated by 30 rounds? Click to follow and unlock the scientific truth behind modern warfare: from ergonomics to tactical systems, from Stalingrad to the battlefields of Afghanistan, see how 30 rounds became the eternal gold standard for infantry! Here is the history of the evolution of firearms that you absolutely don't know!