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If you run an RCBS Pro Chucker progressive press, the shell plate is the heart of the whole operation. It's the part that grabs each piece of brass, holds it steady, and rotates it through all seven stations so every case gets sized, primed, charged, and seated the same way. This #20 plate is built for exactly that, machined from hardened steel to tight tolerances so your cases sit square under the dies and index smoothly stroke after stroke.
RCBS keeps things simple by matching the shell plate number to the shell holder number for your cartridge. The #20 covers a handful of larger-head cartridges, with .45 Colt being the most common one folks load on a progressive. It also lines up with rounds like .338 Marlin Express and 8mm x 68S Magnum. If you already know which shell holder you use for a caliber, that's your plate number too, which takes the guesswork out of ordering.
A progressive press only runs as smooth as its shell plate. When the plate is cut right and the retention is consistent, cases feed and eject cleanly and you spend your time making ammo instead of fiddling with jams. Keeping a couple of these plates on the bench also makes caliber changes quick, since you can pull one and drop in another in a few minutes rather than tearing down half the press.
This plate is compatible with both the Pro Chucker 7 and the Pro Chucker 5 auto-index progressive presses, so it works whether you're running the five or seven station machine. Like the rest of the RCBS lineup, it's made in the USA and backed by their limited lifetime warranty, so it's the kind of part you buy once and use for years.
The #20 plate matches the RCBS #20 shell holder, which covers cartridges like .45 Colt, .338 Marlin Express, and 8mm x 68S Magnum. RCBS uses the same numbering for plates and holders, so if you know your shell holder number you know your plate number. When in doubt, check the RCBS reference table for your exact cartridge before ordering.
Yes. RCBS designed these plates to configure both the Pro Chucker 7 and the Pro Chucker 5 auto-index progressive presses. The plate itself has seven stations and works across the Pro Chucker progressive line.
No, they don't cross over. RCBS shell holder and shell plate numbers are specific to RCBS and do not correspond to the numbering used by other manufacturers. Always use the RCBS chart or reference table rather than assuming a number from another brand will match.
Not at all, and that's one of the reasons folks keep a few on hand. The plate is designed for quick caliber changes, so you can pull one and install another in just a few minutes. Keeping the right plate for each caliber you load saves you from tearing down the press every time you switch.
| UPC | 076683889638 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 88963 |
| Shipping Weight | 0.55 |
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