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Guides

The TAS guides

What a round actually costs, what will run in your rifle, and what is worth keeping on a shelf. No filler, no fabricated experts: if we cannot back it up with the catalogue or with a manufacturer’s own data, it does not go up.

From the blog

The most recent 6 pieces.

  • Ballistics6 min read

    Ballistic coefficient explained without the maths degree

    Ballistic coefficient is a single number describing how well a bullet shrugs off air. You do not need the drag equations to use it — you need to know which version you are reading.

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  • Ballistics6 min read

    TMJ vs FMJ vs JHP: what is actually inside the bullet

    Three labels on three boxes, three different constructions. What the jacket covers, whether the nose opens, and why the answer changes between the range and the nightstand.

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  • Ballistics6 min read

    Soft point vs hollow point: hunting bullets explained

    Both bullets are built to deform; they disagree about how fast. That single design choice decides which one reaches the vitals on a deer and which one dumps energy on a threat.

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  • Ballistics6 min read

    Minute of angle: the one unit every rifleman needs

    Minute of angle is an angular inch, not a linear one. Learn the unit and every scope adjustment, group size and drop chart turns into arithmetic you can do on the shooting bench.

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  • Ballistics8 min read

    5.56 vs .223: what actually matters

    They are the same size, they chamber in the same rifle, and one of the two substitutions is a bad idea. The reason is not the cartridge: it is the chamber it lands in.

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  • Ballistics6 min read

    Understanding grain weight

    Grain is the first number on every ammunition box and the least explained. It is bullet weight, it is not powder, and past a certain point your barrel decides for you.

    Read the guide →