Testing out the Speer Gold Dot ammunition through short barrels. The .357 Magnum is a 135 gr short barrel JHP and the 9mm is a standard 147 gr JHP. I am doing my 10% Clear Ballistics test with 4 layers of denim, with and without rib simulation and also a longer range practical accuracy test. Always appreciative of any channel help :) https://www.patreon.com/user?u=5828221