5.56 Ammo | Fenix Ammo

How to Choose 5.56 Ammo

Confirm the exact cartridge marking and complete product details for your firearm before ordering. Do not treat .223 Remington and 5.56 NATO as universally interchangeable simply because these Fenix listings reference both names. This page is for rifle shooters comparing 55, 62, and 75 grain catalog choices. Fenix lists shared .223 Remington and 5.56mm product labels at 55, 62, and 75 grains. The 55 and 62 grain FMJBT choices contain 250 rounds. The 55 grain FXP VMAX and 75 grain FXP HPBT choices contain 100 rounds. Open the matching product page before ordering.

Grain Weight Choices for 5.56 Ammo

Fenix lists shared .223 Remington and 5.56mm product labels at 55, 62, and 75 grains. The 55 and 62 grain FMJBT choices contain 250 rounds. The 55 grain FXP VMAX and 75 grain FXP HPBT choices contain 100 rounds.

For 5.56 Ammo, the catalog comparison starts with .223 Remington/5.56mm 62gr FMJBT (250 ct.), .223 Remington/5.56mm 75gr FXP (HPBT) (100 ct.), .223 Remington/5.56mm 55gr FMJBT (250 ct.), plus 1 additional documented load. The 5.56 Ammo product titles show 250 and 100 count packaging, so quantity can be checked without assuming two differently named loads are interchangeable.

FMJ and Other 5.56 Ammo Labels

FMJBT is listed at 55 and 62 grains. The other paths are a 55 grain FXP VMAX and a 75 grain FXP HPBT, giving shoppers clear weight, label, and pack distinctions.

For 5.56 Ammo, the catalog comparison starts with .223 Remington/5.56mm 62gr FMJBT (250 ct.), .223 Remington/5.56mm 75gr FXP (HPBT) (100 ct.), .223 Remington/5.56mm 55gr FMJBT (250 ct.), plus 1 additional documented load. The 5.56 Ammo product titles show 250 and 100 count packaging, so quantity can be checked without assuming two differently named loads are interchangeable.

Compare 5.56 Package Quantities

The two FMJBT products use 250 count packs, while the FXP VMAX and FXP HPBT products use 100 count packs. Compare a current price by dividing it by the stated count. Pack count describes quantity only. For these 5.56mm listings, note whether the chosen product is 55, 62, or 75 grains and whether its title says FMJBT, FXP VMAX, or FXP HPBT. This makes the round count calculation specific to the load instead of the collection as a whole.

For 5.56 Ammo, the catalog comparison starts with .223 Remington/5.56mm 62gr FMJBT (250 ct.), .223 Remington/5.56mm 75gr FXP (HPBT) (100 ct.), .223 Remington/5.56mm 55gr FMJBT (250 ct.), plus 1 additional documented load. The 5.56 Ammo product titles show 250 and 100 count packaging, so quantity can be checked without assuming two differently named loads are interchangeable.