Rumor has it, this unique Bourbon is built on the same mash bill as the Old Rip Van Winkle, and the 10YO even clocks at the same 107 Proof as this gorgeous dram. Its a full-bodied and balanced Bourbon that offers a complex character and a powerful finish. It won ten different awards so far, and its proof offers a love Png. W.L. Weller Antique 107 Wheated Bourbon (1L). No reviews. . 1000ml. . 53.5% ABV. $567.99.