If your referring to my post mine is in 260 using Winchester/Olin 243 cases necked up and they're pretty roomy inside.
in fact I've shot that load in 100+ degree heat a lot and primers looked absolutely normal
If your referring to my post mine is in 260 using Winchester/Olin 243 cases necked up and they're pretty roomy inside.
in fact I've shot that load in 100+ degree heat a lot and primers looked absolutely normal
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