I had one and was exposed to a bunch of them. If you shoot a lot and load at 60K plus chamber pressures it will fail and do so rather quickly. The 454 is one of the most intense (if not the most intense) of the Revolver chamberings and it is very hard on guns and shooters due to the pressures when it is loaded on top. I destroyed my RB in less than 200 rounds and sent it in (back to Taurus) for some rehab, after getting it back it made 18 rounds that time and went back again, when it came back factory fresh it found a new home.
I have owned all of the guns chambered for the 454 Casull (some twice) and think it is best to tone it down a bit in the D/A Revolvers as the 454 Casull is very hard on guns. I liked the SRH and felt it would hold up well with a 335 cast just under 1500 fps at this level recoil was stout but very manageable and the power level is good. I still use a F/A Model 83 chambered for the 454 Casull quite a bit but in all honesty I prefer the 475 Linebaugh as it offers more power, more bullet weight, more frontal area at much lower pressures and it is not near as hard on the shooter.
Where are you located ? You can shoot mine if your close.