Quasi-phase-matched second-harmonic generation of $532\mathrm{nm}$ radiation in 25°-rotated, x-cut, near-stoichiometric lithium tantalate has been performed. Using a face-normal topology for frequency conversion applications allows scalable surface area to avoid surface and volume damage in high-power interactions. First-order, quasi-phase-matched second-harmonic generation was achieved using near-stoichiometric lithium tantalate fabricated by vapor transport equilibration. These crystals supported $1\mathrm{J}$ of $1064\mathrm{nm}$ radiation and generated $21\mathrm{mJ}$ of $532\mathrm{nm}$ radiation from a $7\mathrm{ns}$ , Q-switched $\mathrm{Nd}:\mathrm{YAG}$ laser within a factor of 4.2 of expectation.