Just thought I'd put this out there for anyone considering a pre-Mk III Colt DA revolver.
THEY DO NOT HAVE TIMING ISSUES. THEY ARE NOT FRAGILE. THEY ARE STRONGER THAN S&W'S!!!!
Timing
The "timing issues" that get reported happen because people use the WRONG test to check timing on their Colt revolvers. Pull the trigger fully to the rear and hold it there. Now check the lockup. If the cylinder is locked into place, then timing is just fine. THERE IS NO OTHER TEST! If anyone tells you to pull the trigger slowly, or press your thumb on the cylinder to impede rotation, or to draw the hammer back and check...any of those methods are just patently wrong for the Colt DA, and has no place in checking timing of that particular action type. What's funny is, you never hear of S&W timing issues, yet I've re-timed FAR more N frame S&W's in .38/.357 than I ever have of Colt E/I frame revolvers such as the Trooper or Python. The extra weight of those N frame cylinders really plays hell with the lockwork when you start working it hard, and the Colt seems more forgiving than the N frame S&W. Yet, we only hear of Colt timing issues; why is that?
"Fragile"
This is another rumor I kinda don't get. I think it comes from a combination of the timing thing, and the lack of an ejector rod shroud. Well, Colt avoided the ejector shroud because US military (and Colt's tests) confirmed that the ejector shroud actually causes more problems than it solves. When mud is introduced, the ejector rod housing fills up and you can't get the cylinder to close. Colt avoids that by not adding it. However, this eventually proved unpopular in Law Enforcement as cops had a tendency to bend their ejector rods over the skull of some perp...Which I think we'll all agree, its probably not the most appropriate use of your equipment.
Strength
So comparing the medium frame revolvers, the Colt I frame to the S&W K frame; the Colt just wins all over the place. The S&W M19 had issues with split forcing cones, and cracked frames under the ejector/crane (that was a problem in all K frames, not just the magnums). The lighter frame Colts had the same issue with the frame, but not the I/E frame guns; those are brute strong. The I/E frame has a larger diameter cylinder than the K frame S&W's, and a larger frame. Because of this, Colt doesn't have to cut off the bottom of the barrel at the forcing cone just to get the cylinder to close like they do on a S&W K frame, so you can imagine where the K frame forcing cones split; in that very weakened point. Additionally, Colt offsets their cylinder bolts so they're not located over the thinnest portion of the cylinder, S&W puts them right on the thin part. Because of the forcing cones and the cylinder bolts, SAAMI had to lower the pressure standards on the .357 cartridge. The Cold had zero problem with the heavier loads.
So I'm not trying to make a case that Colt is "better" or worse than anyone else...I love my Colt's, but I'm a S&W guy down to my socks. I just want to lay to rest the absolute BS that gets spread about Colt's DA revolvers. They are damn good revolvers plain and simple.