At 2000 rounds of full house 454 loads some of which are pushing a 260gr bullet at 1912fps to a 335gr WFNGC bullet at over 1600fps, gun is still tight, and even more accurate than when I bought it. I have no idea how many 45 colt loads I have run through it but I would say close to the 2000 mark. I for one didn't really want a 454, was very happy with my Ruger Blackhawk in 45 Colt, but a gift from my wonderfull wife is never refused. Have shot numerous FA revolvers, in various calibers, very fine revolver, but not my cup of tea, grandfather still shoots a 1960's era Blackhawk in 357 magnum, my 45 Colt has digested over 7000 rounds in the course of it's life, neither have ever failed. Is a FA a better built revolver, it sure is, is it really stronger not sure, not sure anyone really knows either, do know Ruger ran more than a few rounds through the test guns before they released them, and they are in fact tested to the same pressures as FA tests theirs to which is 140% of the maximum pressures as specified by SAAMI. Wish we could move on from these arguments, reminds me of why Fords are better than Chevies.