.45 are 1 oz
http://silverbulletbullion.com/45-acp.php" onclick="window.open(this.href);return false;
for some reason they are expensive per ounce but you can get fractional silver designed to be used as currency when the zombies attack
http://bullion.nwtmint.com/specials.php" onclick="window.open(this.href);return false;