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very new to reloading metallic cased ammo. i have 2 calipers one digital and one dial caliper both are good quality and both read very close. my dilemma is that if i trim my .223 brass to 1.75 and drop them into my Dillon chamber gauge they are short. should i trim to fit the chamber gauge and use my calipers to determine over all length? my thinking is that the chambering is more critical than bullet depth in regards to consistency.