300 win mag
I have a 300 win mag and I do my reload I use 180g SST Hornady and H4831, 70g, 2900f/s, my problem is just I can not reload the brass 3 to 4 time, after that the primer pocket is enlarge and can not hold the primer, I try different primer but I have the same result, I have a friend he have a 7mm rem mag and he have the same problem, I thick is a problem witch the belt magnum.
Some body told me that I was over load the charge but I using the specification for the data books
if some body know what I am doing wrong let me know please
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