This video clarifies the differences between M193 Ball and SS109 (Green Tip) ammunition, focusing on their compatibility with different barrel twist rates. It explains that M193 (55 grains) is optimized for a 1:12 twist, while SS109 (62 grains with a steel penetrator) requires a faster 1:7 twist for optimal stabilization and accuracy. The instructor debunks the myth that Green Tip ammunition damages chrome-lined barrels, stating that improper ammunition selection for a given twist rate leads to inaccuracy, not barrel damage.
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