10MM vs 357 MAG (Penetration Test)
This video features an expert-level penetration test comparing the 10mm Auto and .357 Magnum cartridges. Conducted by Kentucky Ballistics, the test utilizes a Glock 20 for the 10mm round (180gr FMJ) and a Smith & Wesson 686 for the .357 Magnum round (125gr FMJ), both fired into wooden boards. The .357 Magnum demonstrated superior penetration, stopping on the 15th board compared to the 10mm's 11th board.










