A Double Tap load (not bullet) was what ka-boomed my G20. They told me they had gotten a questionable lot of brass, asked for the bad one for proof and the remainder of ammo from the two boxes I had left, and sent me new ammo to replace it. The ka-boom happened with a Lone Wolf barrel I replaced with a stock 6" Glock barrel, and I have not had a problem with their ammo - or anyone else's since. I like Hard Cast, and like the Double Tap option for 10mm.
