The Redding 300 Remington Ultra Mag Bushing Full Length Type S Die handles precision rifle die work where you need to resize the case body while maintaining tight control over neck dimensions in a single operation. This is the reloading die of choice for shooters who want repeatable concentricity and consistent neck control without juggling multiple dies. The Type S bushing design lets you accomplish both jobs—full length resizing and neck work—with the accuracy Redding is known for, making it a solid option for 300 RUM loaders working toward tighter groups and better brass longevity.

What sets the Type S apart is the self-centering bushing system. As your case neck enters the die, the bushing automatically centers itself on the neck itself rather than relying on the case body, which naturally improves concentricity. The adjustable decapping rod is the key to versatility here: you can dial in exactly how much of the neck gets sized, so if you want to size only part of the neck length, you've got that control. This is useful if you're working with carefully prepped brass or experimenting with neck tension.

The die ships with both a standard size button and a decapping pin retainer, giving you options depending on your workflow. Here's a practical detail: by removing the bushing and internal components, you can repurpose the Type S as a body die alone—a smart move if your reloading bench needs to pull double duty. You'll use the same interchangeable bushings that fit Redding's other bushing-style neck dies, so if you already have a bushing inventory, this die plays well with your setup.

The Redding 300 Remington Ultra Mag Bushing Full Length Type S Die handles precision rifle die work where you need to resize the case body while maintaining tight control over neck dimensions in a single operation. This is the reloading die of choice for shooters who want repeatable concentricity and consistent neck control without juggling multiple dies. The Type S bushing design lets you accomplish both jobs—full length resizing and neck work—with the accuracy Redding is known for, making it a solid option for 300 RUM loaders working toward tighter groups and better brass longevity.

What sets the Type S apart is the self-centering bushing system. As your case neck enters the die, the bushing automatically centers itself on the neck itself rather than relying on the case body, which naturally improves concentricity. The adjustable decapping rod is the key to versatility here: you can dial in exactly how much of the neck gets sized, so if you want to size only part of the neck length, you've got that control. This is useful if you're working with carefully prepped brass or experimenting with neck tension.

The die ships with both a standard size button and a decapping pin retainer, giving you options depending on your workflow. Here's a practical detail: by removing the bushing and internal components, you can repurpose the Type S as a body die alone—a smart move if your reloading bench needs to pull double duty. You'll use the same interchangeable bushings that fit Redding's other bushing-style neck dies, so if you already have a bushing inventory, this die plays well with your setup.