Berry's Superior Plated Bullets are swaged and plated to final weight and re-struck for accuracy and precision. They are more affordable than jacketed rounds and won't foul your barrel with lead. SAAMI MAX 357 MAG COL=1.590. SAAMI MAX 38 SPL COL=1.550". Minimum velocity 800 fps. Can withstand velocities up to 1250 fps. Mfg: Berrys Manufacturing