Further experimentation with heavy cast bullets in the stock Glock barrels. Good news!
At about 1:30 I mention that I’ve tried Garrett Cartridges, but I meant to say DoubleTap Ammo.
Garrett is also a specialty ammo company that specializes in hot loads for the .44 Magnum and .45-70. DoubleTap has long been a specialty loader for the 10mm.