- Weatherby announces the NEW PRICING on all Select Plus Ammunition for Weatherby Cartridges. NOT A SALE, we have adjusted our ammunition pricing and are excited to make Weatherby Cartridges more accessible for all consumers. - Adam Weatherby walks through the Weatherby Cartridges from smallest to largest and all the information between. - We talk comparable cartridges to the Weatherby Cartridges in velocity and energy.