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This is Redding's Carbide Size Button and Rod Kit built specifically for their Competition Bushing Neck Sizing Die in .338 Lapua Magnum and .338 Remington Ultra Magnum. If you've been running a Redding Competition die and want the option of a sizing button in the mix, this is the part that makes it happen. The carbide button floats freely on the decapping rod so it self-centers in the case neck, which keeps your necks straight and your runout low.
The big draw with carbide is that it lets you size the inside of the neck smoothly without any lubrication. Traditional steel buttons drag and often need a little case lube or graphite to pull through cleanly, and that extra step adds time and mess to a loading session. The carbide surface slides through dry on most fired brass, so you spend less time prepping and more time loading. On magnum cases like the .338 Lapua and .338 RUM, where you're already handling a lot of brass and a lot of powder, that smoother stroke really adds up.
Redding's Competition Bushing Neck die ships without a size button because it's aimed at folks running neck-turned or thickness-sorted brass. This kit gives you the flexibility to add one back in when you want it, which is handy if you're working with a mix of prepped and unprepped brass or just prefer a final pass over the neck ID. The free-floating design is the key here. Instead of forcing the neck into alignment, the button finds its own center as the case comes up, so you're not introducing runout during sizing.
Keep in mind this is an upgrade component designed for the Competition Bushing die, not a complete die set and not a replacement for your bushings. Bushings and the die itself are purchased separately. For a .338 Lapua or .338 RUM precision rifle, it's one of those small tweaks that quietly improves your consistency at the loading bench.
Yes, this particular kit (part 99533) is made specifically for the Redding Competition Bushing Neck Sizing Die in .338 Lapua and .338 RUM. Those competition dies ship without a size button, so this kit adds that capability back in. It is not the same as the standard Type-S button kits, which fit regular bushing dies rather than the Competition series.
The whole point of the carbide button is that it lets you size the inside of the neck without lube on most fired brass. The hard carbide surface slides through cleanly where a steel button would drag. Very dry virgin brass may still benefit from a touch of graphite or mica, but for routine reloading you can usually skip the lube step.
No, bushings are sold separately. This kit covers the carbide size button, the rod, a retainer, and a spare decapping pin. You'll choose your neck bushings based on your brass neck wall thickness and the amount of tension you want.
Yes, the .338 carbide button covers both the 338 Lapua Magnum and the 338 Remington Ultra Magnum since they share the same bullet and neck diameter. One kit handles your reloading for either cartridge when paired with the matching Redding Competition die.
| UPC | 611760995330 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 99533 |
| Caliber/Gauge | .338 Caliber |
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