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7.62 NATO vs. .308 Win.

Some commercial-spec .308 Win. ammo can literally come apart in a true NATO chamber.

Semi-Automatic Tech: Understanding Chambers

Knowing your rifle chamber matters. Learn why and how.

Rimless .38 Super Brass: Everything You Need To Know

Rimless .38 Super loads occupy a unique niche in the shooting sports, particularly popular with racegun competitions in action pistol

Winchester’s New ‘Mature’ Cartridge Receives SAAMI Acceptance

It’s official: 350 Legend, which can outperform other straight-walled cartridges while staying within safety parameters, is SAAMI-cleared

What is +P?

SAAMI sets standards for chamber and ammunition dimensions and ammunition pressures in the United States.

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