The plastic in these hulls is not as durable as AA's, Remington Unibody or Premier/Nitro or Federal hulls. I have loaded a few of these in the past and it is a lesson in frustration with occasional crushed/wrinkled shells. I have loaded on several different reloaders (MEC, Pacific, Lyman) and the same results occured on each. Maybe your mileage will differ. Load a few and let us know how they work for you...
Best Regards!
Hazmt