Description
The Redding Big Boss II is the press you reach for when you want to load anything and never feel like the tool is holding you back. It takes all the good bones of Redding's original Boss press and puts them on a heavier cast iron frame with a beefy 1 inch diameter ram and a long 3.8 inch usable stroke. That combination means you can run small pistol cases one day and resize giant magnum brass like 338 Lapua the next without the press flexing or fighting you.
What Sets the Big Boss II Apart
Two numbers really define this press: the 4-1/2 inch frame opening and the 3-13/16 inch ram stroke, both among the largest you'll find in a single stage. The O-frame design is cast with a 36 degree offset, which tilts the press head toward you so you've got clean sightlines to the shell holder, dies, and case mouth while you work. It's one of those details you don't notice until you've used a press without it, and then you never want to go back.
Primer Handling Done Right on the Big Boss II
This model comes equipped with Redding's Spent Primer Collection System, the same setup used on their T-7 turret and UltraMag presses. Spent primers drop straight through the hollow ram into a flexible tube that holds hundreds before it needs emptying, so you're not chasing primers across the bench or dumping a crusty cup every few rounds. It also runs the Smart primer arm, which swings into position on the ram stroke and flips out of the way when you don't need it. The press ships with both large and small primer arm assemblies, so you're covered for whatever you're loading.
Fitting the Big Boss II Into Your Setup
It accepts standard 7/8-14 threaded dies right out of the box and uses Redding's die bushing system if you want faster die swaps down the road. Built heavy and made in the USA, this is a press meant to be bolted to a solid bench and handed down. Whether you're new to the game or you've been loading for decades, give this one a close look.
Key Specifications
- Manufacturer: Redding
- MPN: 97000
- UPC: 611760970009
- Press Type: Single Stage
- Frame Design: O-Frame
- Frame Material: Cast Iron
- Frame Offset: 36 Degrees
- Frame Opening: 4-1/2 inches
- Ram Diameter: 1 inch
- Usable Ram Stroke: 3.8 inches
- Die Thread Accepted: Standard 7/8-14 (bushing included)
- Die Bushing System: Redding
- Primer System: Spent Primer Collection System
- Primer Arm: Smart primer arm, large and small included
- Country of Origin: USA
What’s Included
- Redding Big Boss II single stage press
- Spent Primer Collection System with flexible tube
- Large Smart primer arm assembly
- Small Smart primer arm assembly
- Die bushing
Frequently Asked Questions
What cartridges can the Big Boss II handle?
The Big Boss II is built to load the full range from small handgun cases up to the largest rifle magnums. Its 1 inch ram, heavy cast iron frame, and 3.8 inch usable stroke give it the muscle and clearance for big cases like 338 Lapua Magnum. If you reload a wide variety of calibers on one bench, this press covers nearly all of it.
Does the Redding Big Boss II use standard dies?
Yes. It accepts standard 7/8-14 threaded dies right out of the box, so your existing dies will thread right in. It also works with Redding's die bushing system if you want quicker die changes later on.
How does the spent primer collection system work on the Big Boss II?
Spent primers fall through the hollow 1 inch ram into a flexible plastic tube that holds hundreds before it needs dumping. You can route that tube straight to a trash container if you'd rather not empty it by hand. It's the same system Redding runs on their T-7 turret and UltraMag presses, and it keeps your bench clean.
Does the Big Boss II come with primer arms for both sizes?
It does. The press ships with both the large and small Smart primer arm assemblies, so you're set for small and large primer pockets without buying anything extra. The Smart arm swings into position during the ram stroke and moves out of the way when you're not seating primers.




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