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Routinely one would expect to exceed the MAX 6X45 load. This is due to the larger cross-sectional area of the bigger bore and base of the bullet. Do the math and it is surprising how much the gas has more room to expand to. For a quick visual look at the variations in max on a 243, a 7-08 and a 308 shooting the same weight bullet. The only bugaboo on those kinds of comparison are making sure the operating pressures are the same. They tend to be pretty consistent given the same parent case with only s neck diameter variation.Greg
Routinely one would expect to exceed the MAX 6X45 load. This is due to the larger cross-sectional area of the bigger bore and base of the bullet. Do the math and it is surprising how much the gas has more room to expand to. For a quick visual look at the variations in max on a 243, a 7-08 and a 308 shooting the same weight bullet. The only bugaboo on those kinds of comparison are making sure the operating pressures are the same. They tend to be pretty consistent given the same parent case with only s neck diameter variation.
Greg
