I'd keep loading, I would imagine you'll get at least another 3 and more than likely 5. I've fired federal factory ammo 7 times with no issues, I user Nosler now and am at my 8th firing with no issues at all and for the last 3 to 4 firings have been with loads 5 grain over max - this is also with a .270. How many times have you had to trim them?
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