Thanks for the info so far. I've been trying bonded bullets only... Interbond, Accubond, and Core Lokt Ultra's. I use the gun to seat a bullet into a split necked case, measure the length, and shorten it up .020". I'm not one for pushing the limits of a caliber, I tend to stick with the max listed in my manual. H4350 isn't available currently, but I would guess Imr4350 should be a near substitute. In a 20" barrel, is there a problem with unburned powder exiting the barrel, and could that cause accuracy problems?
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