Question is this: I recently purchased a Win 71, 348 cal and it's recommended loads are around the 35,000 to 36,500 psi. Those pressures seem to be standard for that lever gun. I read where folks have rechambers the 71 to more intense rounds such as the 450 Alaskan, 450 Ackley and other larger rounds. Now it seems to me that these more powerful rounds will have greater pressures...but still utilize the same lever action. Does this mean the 71 action can safely withstand a lot more pressure than the recommended loadings of the 348?