I have a classic, 1951-vintage Ithaca Model 37 Featherlight 20-ga. pump-action shotgun with a 2 3/4" chamber and a 2 3⁄8"-chambered smoothbore Deerslayer barrel for use with slugs. Are there factory 2 3/4" buckshot loads that have shot sizes larger than No. 3?
Although factory-loaded ammunition options for the .300 HAM’R are limited, handloaders can optimize this potent AR-15 cartridge to suit a variety of applications.