Description
This is Redding's Competition Bullet Seating Die built specifically for the 7mm Remington SAUM, and it's the die serious handloaders reach for when runout and repeatability matter. Instead of the usual top-down approach, it uses a precision ground sliding sleeve that fully captures and supports the case before the bullet ever starts moving. The result is the kind of straight-line seating that shrinks groups and keeps your ammo consistent from the first round to the last.
What Sets the 7mm Rem SAUM Competition Seater Apart
The heart of this die is its floating seating stem. It moves independently of the micrometer, so it stays perfectly aligned with the case and doesn't pass along any error from the rest of the die. The stem is ground to match bullet diameter so closely that it's known to float on a thin column of air inside the bore, which tells you just how tight the tolerances really are. Redding ships it with a standard seat stem that handles most common 7mm bullets, and a VLD stem is available separately if you're loading long, sleek match projectiles.
Dialing In Seating Depth
The micrometer head reads in .001" increments and adjusts without clicks, so you can land on any setting you want. It also has a zero feature, meaning once you find the sweet spot for a particular rifle or a favorite load you can note the number and dial right back to it anytime. That takes a lot of the guesswork and trial-and-error out of chasing an accurate seating depth.
Fit and Use
The die uses standard 7/8"-14 threads, so it drops into any common single-stage press without fuss. Keep in mind it's a dedicated seater and does not crimp, which is exactly how most precision loaders want it. If you want a crimp on your SAUM rounds, you'll add a separate Redding crimp die. For anyone building match-grade or hunting loads in 7mm Rem SAUM, this is about as refined as factory seating dies get.
Key Specifications
- Manufacturer: Redding
- Manufacturer Part Number: 55280
- UPC: 611760552809
- Cartridge: 7mm Remington SAUM (Short Action Ultra Magnum)
- Die Type: Competition Bullet Seating Die
- Case Type: Bottleneck
- Micrometer Adjustment: .001" increments, infinitely adjustable with zero-set feature
- Seating Stem: Floating, precision ground to bullet diameter (standard stem included)
- Sleeve: Precision ground sliding chamber sleeve for full case support
- Thread: 7/8"-14 standard
- Crimp: No, seating only
What’s Included
- Redding Competition Bullet Seating Die for 7mm Remington SAUM
- Precision ground sliding chamber sleeve
- Micrometer adjustment head
- Standard free-floating bullet seating stem
Frequently Asked Questions
Does the 7mm Rem SAUM Competition seating die crimp the bullet?
No, this is a dedicated seating die and has no crimping function. That's by design, since most precision loaders prefer to seat and crimp as separate steps. If you want to crimp your SAUM loads, you'll pick up a separate Redding crimp die.
What makes this Competition seater different from a standard Redding seating die?
The big difference is the sliding sleeve and floating stem system. The sleeve captures and supports the case before seating begins, and the stem floats independently so the bullet stays perfectly aligned with the case. That combination produces noticeably lower runout and more consistent rounds than a standard seater.
Can I load VLD bullets in 7mm Rem SAUM with this die?
It comes with the standard seat stem, which handles most common 7mm bullets just fine. If you're running long, high-BC VLD style bullets, Redding sells a caliber-specific VLD stem that contacts the ogive at a better point. It's a quick swap and worth having if VLDs are your thing.
Will this die fit my press?
Yes, it uses standard 7/8"-14 die threads, so it threads into any common single-stage reloading press. Just set it up per the instructions and use the micrometer head to dial in your seating depth.





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