6.5 creed magnum

[Macintosh]

They patented, what? An alloy case? Hard for me to see that sticking. All Hornady has to do is ever so slightly tweak the alloy and that would circumvent the patent. I’m not a patent lawyer…

Guessing if its patented there are several different ones, likely focused on multiple facets of the project that have presnented design hurdles in the past, but I would imagine stuff like the particular way they fix the primer into the case, so it doesn’t blow out under such high pressure, maybe some of the processes in manufacturing, I don’t know. But steel cases have been in use for a long time, so I agree it’s not likely something simple, it’ll be something very specific around how they solved a particular problem, that might make it difficult for another company to replicate what they’re doing.

 

[RME]

Folks are asking about reloading. With standard cartridges primers are one of the key indicators of excessive pressure. Im not a reloader so I dont know details, but Im curious what prevents the higher pressure in these cases to not blow out primers? Do they require a different type of primer? What pressure signs will folks use to tell where they hit 85k psi (or whatever) in these new cases? I imagine there’s a way, but seems like it may require a new learning curve?

You're right, there will definitely be a learning curve. Traditional pressure signs like reading primers are notoriously inaccurate so they can't really be relied on currently let alone converting them over to new high pressure tech.

The way to keep things on the rails is to use a chronograph, in conjunction with pressure tested data in a load manual if possible.

 

[RME]

Guessing if its patented there are several different ones, likely focused on multiple facets of the project that have presnented design hurdles in the past, but I would imagine stuff like the particular way they fix the primer into the case, so it doesn’t blow out under such high pressure, maybe some of the processes in manufacturing, I don’t know. But steel cases have been in use for a long time, so I agree it’s not likely something simple, it’ll be something very specific around how they solved a particular problem, that might make it difficult for another company to replicate what they’re doing.

In my admittedly limited understanding of SAAMI rules and regulations, I thought anything approved by SAAMI can be freely used by all SAAMI members.

 

[Macintosh]

In my admittedly limited understanding of SAAMI rules and regulations, I thought anything approved by SAAMI can be freely used by all SAAMI members.

Interesting. I have no idea, but that would indeed be interesting.

This is just a quick google ai search so take with an appropriate grain of salt:

The patents focus on specific, enumerated features of the Peak/Peak Alloy high‑pressure cartridge case and related ammunition components. Key patented facets (summarized from Federal’s filings and reporting):

• Material composition and treatment of the one‑piece case: claims on using specific high‑strength steel/boron‑alloy chemistries and heat‑treatment or processing steps to produce a ductile, high‑strength case that seals a chamber at elevated pressures. Wikipedia1
• One‑piece (monolithic) case geometry and construction: claims covering a single‑piece metal case (rather than multi‑piece or sleeved designs) with particular wall thickness profiles, tapering, and dimensional relationships that withstand very high MAP (e.g., ~80,000 psi). Wikipedia1
• Case head, rim, and extraction features: claims on reinforced case head/rim geometries, support structures, and extractor engagement surfaces to handle increased rearward forces at high pressure. americanrifleman.org1
• Neck, shoulder, and sealing design: claims addressing neck thickness, shoulder angle/positioning, and mouth/neck treatments that ensure reliable obturation (gas seal) and feeding/feeding reliability under high pressures. americanrifleman.org1
• Surface coatings, corrosion protection, and lubrication/finish processes for steel cases to ensure reliable feeding, chambering, and long‑term corrosion resistance (e.g., plating, coatings, or internal lubricants). muledeer.org1
• Manufacturing methods: process claims for forming, machining, spinning, or cold/ hot‑working steps, and quality‑control/test processes that produce consistent high‑strength cases suitable for the specified pressure regimes. americanrifleman.org1
• Ammunition loadings and pressure profiles: claims (or paired application material) describing loading envelopes, pressure curves, and combinations of powder/bullet weights optimized for the Peak case to achieve the claimed higher velocities from shorter barrels. americanrifleman.org1
• Use cases and system claims: claims tying the case technology to cartridges/chamberings (e.g., the 7mm Backcountry and +Peak loadings), and to firearm/ammunition system interactions (how the case transfers/absorbs forces and interacts with existing firearm designs). Wikipedia1

If you want the precise claim language and claim numbers (e.g., for US patent US11826818B2 and related filings), I can extract and list the specific independent claims and their exact wording.

 

[RME]

Interesting. I have no idea, but that would indeed be interesting.

This is just a quick google ai search so take with an appropriate grain of salt:

It would be a good topic for the Hornady podcast or some other industry insiders to talk about the ins and outs of how SAAMI works in that regard.