An old LEO friend of mine retired his 1st gen Glock 20 and I bought it and 500 rounds of ammo from him. I shoot it enough to be proficient but it mostly lives in the glove box of my car when I'm on a road trip. I'm very inpressed with what this round does and would hock something to buy a M&P 10 pistol and/or AR type rifle in 10 mm.