Accurate loading data is essential for safe and predictable performance when using 7.62x51 Winchester SMK 168gr bullets. Verify to consult multiple references, such as trusted books, before trying to load ammunition. https://10-gauge-shot-gun-europe755843.celticwiki.com/2471379/h3_tag_reloading_data_for_7_62x51_hornady_168gr_projectiles