Custom made dies are not always kept in stock and are made to order only. If you do not see the dies you are needing listed in our catalog, we can have Redding custom make them for you. Simply send Redding either 3 fired cases, a chamber reamer drawing, or a dimensional drawing of your cartridge. Some cartridges with a very unique design or shoulder angle may require separate tooling and engineering charges to partially cover the cost of special tooling. Please allow 12-16 weeks for custom dies. SMALL BASE FULL LENGTH DIES: These dies are designed for firearms with custom chamberings that are tighter than SAAMI specifications. We use them on our gas guns with close tolerance chambers as well.