Hand crafted on single stage presses with each powder charge weighed (not measured by volume) to within 1/10 grain for consistency. Premium 223 Rem with 53 grain Hornady V-Max bullets. The V-Max bullet fragments upon impact causing devastating internal damage. Exit wounds, if any, are small to preserve the pelt. Not intended for large game or personal defense. Sold in boxes of 20 rounds. We also offer test loads in packages of 40 rounds which include 10 rounds of 4 slightly different loads to find out what your particular rifle prefers for $57.00. This will give you enough for 3 3-shot groups of each load with allowance for one stringer. Detailed instructions come with these test load kits.