That would be 1000 rounds rapid in a single session.
TDC
I've done this or been present in this scenario with the Glock 22 .40S&W (my own), HK USP 9mm, M&P 9mm, Sig 229 9mm, CZ 75 9mm, Beretta 92, Beretta 96, Taurus PT92 (my own), numerous 1911s including 9mm (my own) .40 and .45 from various manufacturers.
I'm not of the opinon that the 1911 is the most abuse friendly but this may be the pistols I have experience with in which case none have been extraordinarily reliable and only the stainless models had finishes worth writing home about. Also, I'm starting to realize that people are attempting to refute the Glock for the sake of talking s**t about the brand. I'm not a fan boy of Glock, in fact it is the pistol I enjoy shooting the least out of the firearms I own. I've also not been super impressed with HKs although they are nice and reliable but I find they don't live up to their reputation. Beretta and Taurus are not dependable but Glock and Sig never cease to astound me. They hold up really well and perform extraordinarly well hot, neglected and dirty.
Tim.