Accurate data regarding H4350 developing loads for the .308 bore chambering utilizing 168-grain Nosler SMK rounds are critical for secure shooting. Carefully consult multiple manuals, such as a latest Nosler ballistic https://sinusite-series-tp9sfx-w787029.wikistatement.com/5814335/h4350_reloading_data_for_308_with_168gr_smk_bullets