Cartridge Guides

Using a 5.56 for home defense: barrel length, defensive ammunition, interior walls, hearing and blast indoors, setup and training, and the 16, 10.5 and 8-inch CM15.

Using a 5.56 for coyotes and hogs: 50 to 77 gr bullet choices, calculated drop and energy, shot placement on hogs, and which CM15 5.56 NATO barrel length fits.

Is a 5.56 for deer the right choice? Why Chattahoochee Munitions recommends a larger caliber, state rules, and the AR15 and AR10 deer cartridges to consider instead.

5.56 twist rate chart: what the customary 1:7 and 1:8 twists stabilize from 55 to 77 gr, why every CM15 5.56 NATO barrel uses 1:7, and which loads to choose.

5.56 barrel length: published and estimated velocity by length, gas systems, muzzle blast, handling, the NFA, and the 8, 10.5 and 16-inch CM15 5.56 NATO firearms and uppers.

5.56 ballistics charts: Federal 55, 62 and 77 gr published loads, calculated drop, energy and wind to 500 yards, 50 and 100-yard zeros, and 16, 10.5 and 8-inch CM15 estimates.

5.56 vs 308 Winchester: Federal published and calculated ballistics, energy, recoil and weight, hunting, suppressors, and the CM15 AR15 and CM10 AR10 Chattahoochee Munitions manufactures.

5.56 vs 223: chamber leade and pressure, the one-way safety rule, the new SAAMI 5.56 COMM, .223 Wylde, Federal published and calculated ballistics, and the CM15 5.56 NATO lineup.

What is 5.56 NATO? The 5.56x45mm (556) cartridge explained: specifications, the .223 Remington chamber rule, 5.56 COMM, uses, twist, barrel length and the CM15 AR15 lineup.

What is a straight wall cartridge? Straight wall vs bottleneck, why straight wall deer rules exist, what they usually specify, and the 350 Legend and 400 Legend CM15 rifles.