.223 Versus 5.56

While these cartridges seem to be the same, there is a difference and it matters.

by Patrick Sweeney

Gunsmith’s should have the SAAMI-published list of unsafe caliber combinations detailing cartridge and chamber combinations that can be force-fit into a rifle and the combos that ought not be there. One surprising (to some) inclusion is the .223 Remington and the 5.56×45. While they are not the same and should not be used interchangeably, .223 is generally safe in the 5.56 but the reverse is not.
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Gauging and Services

The U.S. Army gauges and services weapons annually to ensure that they are fully mission capable (FMC) at any given time.

by Stephanie Martz
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Rival Arms Glock Builds

Improving a Glock by fitting a Rival Arms slide and barrel. Here’s what to look for and practical considerations.

by RK Campbell
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Polymer Stippling

Inspiring thought for gunsmiths on how they can add or improve stippling services to their customers. Labor + Simple Tooling = Profits!

by Micah Huyett
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.22 Nosler

Is the .22 Nosler the next “The Next Best Thing” for the AR-15? Here are the pros and cons of this new cartridge.

by Joe Carlos
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LabRadar

Doppler radar technology offers improvements over ballistic chronographs with older-style optical sensors and screens.

by Robert Kolesar
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Straight Bullets

Stop deforming bullets! Having cartridges straight and inline is critical for accuracy. Gunsmith work and customer education to ensure this happens is vital.

by Joe Carlos
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