Rugers are the only revolver I have seen with special loads that exceed SAAMI standard pressures and listed with them is the Contender. I've had my Ruger (and used it hard) for 45 years shooting over 10,000 rounds a year for the three years I competed in Hunter's Pistol Silhouette. It easily has over 50,000 hot rounds through it and it will still shoot 1" groups at 25 yards. I have seen no other pistol that will stand up to what my Ruger has.
Check out Korth, Manurhin, or Freedom Arms.
The difference is they are also extremely refined.