7 PRC SAAMI approved

[.300 Dakota]

Who's is building what with this caliber? Action, barrel, barrel length, stock, brake-suppressed? What bullet and powder combo?

I would start with a pre-fit for my Nucleus long action twisted 1:8. Maybe I missed it in 20 pages, but without knowing the dimensions of the proposed new round, I couldn't guess at a load or need for a brake.

 

[.300 Dakota]

I'll be honest I don't know anything real specific. I inquired about building my own necked up 6.5 prc to 7 prc, so my guess, take that for little cause I don't know, is it'll atleast be based on that.

Although with hornady backing the 7LRM, I wonder if it'll be something in between and take advantage of a true mid length action? So they will have coveted the 6.5 prc SA, the 300 PRC LA and now have a 7 PRC mid action.

According to an April post on another MAJOR forum, it IS the Gunweks 7 LRM. They are supposedly teaming with Hornady to get SAAMI approval and they can't call it the 7 LRM because of reasons mentioned in this thread already. That being as they themselves said, different versions of the chamber/throating exist so SAAMI wouldn't approve it. Because Hornady uses the proprietary "PRC" nomenclature, which are SAAMI standardized, the 7 LRM can reach commercial status by undergoing a name change and using one particular iteration, which will become known as the 7mm PRC.

This information was said to have come directly from Aaron Davidson himself on a podcast.

So take that FWIW. So according to them, according to Aaron Davidson, the 7 PRC IS the 7 LRM.

 

[.300 Dakota]

The 7 LRM could be said to be designed off the .300 PRC as someone said a Hornady rep was quoted as saying. (Saying the new 7 PRC was designed off the .300 PRC.) The LRM is a little shorter with a slightly longer neck and not quite as fat, but close. Performance has a 180gr bullet launching at 3100 fps. So probably mid-80s on capacity.

Hornady makes LRM dies, so do they make the brass like they do for GA Precision? If so, it would seem like a good business move by Hornady to standardize the cartridge they already make brass and dies for and just change the wrapping and headstamp. Now they get to sell a whole lot more if someone will step up and make a rifle for them. Hopefully someone other than Ruger this time. No offense to Ruger; they're just not on the short list of precision bolt action long range rifles.

Will be fun to see the real unveil.

 

[Harry Knutz]

And yet the specs for the 260 state that it must not have a fast twist nor a long throat and because of that it can't out perform the creedmoor. The sweede suffers from the same problem. It is specs put it on the low side of the pressure spectrum so decent factory ammo is not available.

Please show me where the specs show that it MUST not have a fast twist, nor a LONG throat?

 

[gregsjt]

No this is not even close to true...
In another post you said the 6.5x 284 wasn't approved by saami, well it was.
The 6.5x284 Norma is saami approved and has been for almost 2 decades, also the saami throat is set up for 140 Bergers.

Well... we might both be wrong on the 6.5x284. You are correct, it has been adopted by SAAMI as the 6.5x284 Norma but it says it was issued in 2019 not two decades ago. It is still listed under the New Cartridges not in the main list which is where I looked before I posted.

New Cartridge & Chamber Drawings

 

[Harry Knutz]

Well... we might both be wrong on the 6.5x284. You are correct, it has been adopted by SAAMI as the 6.5x284 Norma but it says it was issued in 2019 not two decades ago. It is still listed under the New Cartridges not in the main list which is where I looked before I posted.

New Cartridge & Chamber Drawings

It was most likely "CIP' approved that long ago which is the "SAAMI" of Europe.

 

[Taylorbok]

So yes its BS marketing that propelled the PRC to the top, and guys who aren't truly invested in the world of long range are gobbling it up

You can't deny that the cartridges work. Obviously that contributes to the success. There is tons of people who take long range very seriously that are shooting the PRC cases. I'm planning on doing my next barrel in 300 PRC improved to take the place of my 300 RUM just so I can mag feed it with the heavy bullets.

 

[Harry Knutz]

You can't deny that the cartridges work. Obviously that contributes to the success. There is tons of people who take long range very seriously that are shooting the PRC cases. I'm planning on doing my next barrel in 300 PRC improved to take the place of my 300 RUM just so I can mag feed it with the heavy bullets.

As much as I can't stand Creedmoor's, I already have a 6.5 PRC, And my next build is going to be a 300 PRC, 9 Twist.

 

[jasonco]

 

[venatic]

I saw the actual ammo today so it's not a unicorn. It is real.

 

[Prieto9000]

Please show me where the specs show that it MUST not have a fast twist, nor a LONG throat?

Here are the max chamber dimensions for it to comply with saami specs to which gun and ammo manufacturers must machine their barrels and load their cartridges. You can also find that it requieres a 1:9" twist for de rifling. You can have a custom chamber cut on a barrel but it's no longer A saami chamber and you won't find off the shelf ammo loaded that way.

 

[Harry Knutz]

Yes, But there is no where that it says it MUST have anything. Any rifle maker could put a faster twist on a 260 Remington with a longer throat, Factory ammo will still fit and give acceptable accuracy, But the handloader could seat longer heavier bullets out further, Making the creedmoor much less of a cartridge.

 

[Prieto9000]

Yes, But there is no where that it says it MUST have anything. Any rifle maker could put a faster twist on a 260 Remington with a longer throat, Factory ammo will still fit and give acceptable accuracy, But the handloader could seat longer heavier bullets out further, Making the creedmoor much less of a cartridge.

And yet no comercial manufacturer is willing to do that. Imagine why. Same as the 6.8 western vs 270 wsm. No manufacturer is willing to cut a longer throat nor put a faster barrel on a 270 wsm. They prefer to adopt the new cartridge and call it a day.

 

[Taylorbok]

And yet no comercial manufacturer is willing to do that. Imagine why. Same as the 6.8 western vs 270 wsm. No manufacturer is willing to cut a longer throat nor put a faster barrel on a 270 wsm. They prefer to adopt the new cartridge and call it a day.

Because it's new and that's what sells, that's how marketing works. The average hunter doesn't look to much into the chamber design he just read 6.5 PRC is the new best thing and goes and picks up a new rifle and a couple boxes of ammo. A marketing team trying to get the general public to understand how their new long throat fast twist 260 Rem will out run a 6.5 creed is just to hard, it's easier to put out a new case and say hey check out this NEW cartridge that smokes a 6.5 creed.