May have something to do with the quantity also, we did shoot a lot. Since I ruined the one Super I started using 2400 and have seen no problems since.
I don't get the opportunities to shoot that many 44's anymore. If you don't shoot 150-300 rounds a week as we did in the start of the "Metallic Silhouettes" game you may not ever have a problem. Remember now, the Maxi was targeted to that same crowd, you know, the ones that shot maximum loads and shot a lot of em'. I must say, WW296 and H110 really came to popularity because of these folks... Chief aka Maxx Load