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Anyone have one? Thoughts. Looking for something different than the norm likely in 7mm. To me the 7mm is OK but been there done that. Trying to figure out what might motivate me to do a build or do something different.

I have not done the 7mm but the 270 on the 300 mag case . Fast . How about 7mm Dakota?

I would want one where I don't have to pray to God to find brass. Would brass not be difficult to find for the dakota? Going to look it up.

Why not an STW? pretty sure it out preforms the practical and you can purchase 7mmSTW brass and ammo on the shelf.

It’s like finding a unicorn.

what about the 7mm SS? short action little screamer. brass can be bought from the designer of the cartridge. he's even talking of getting headstamped stuff. he also sells stuff ready for fire forming if you don't feel like bumping shoulders and neck turning. get something very different.

The next custom high horse 7mm I get will be a 7mm Practical. 7mm/300 win mag

X2. Amazing effiency out his cartridges. The 7mm SS is getting 3100fps with a 180, 26” tube and a true short action. My 338 SS build is well underway.

Volume
 

How much powder and type?

About 62 grains of RL26, 26” tube. Guys are getting great results with 195’s as well. All from a short action saum based case.

So basically a 7 mm Rem Mag.

There is a difference.

I had a 7mm Yukon, which is essentially a 7mm Practical. It was an amazing rifle, and a pretty impressive cartridge. It would run the same speeds as an STW with a fair amount less powder. There is good write ups on it by a guy named kiwi nate on a different forum, just don't recall which one.

There most certainly is.

7rem mag is shortened quite a bit compared to the 300 win. 7mm-300 is great, there is 300 win cases everywhere you can just run through a die


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I was only being a little sarcastic. Owning both the 300 Win Mag and the 7 Rem mag I am aware of the differences in the case. My point is, the Practical is a Wildcat effort to get a measly 100 FPS more speed with a 162 grain bullet, if you are lucky and it shoots accurately at top loads. No factory ammo and wrong marked brass that will easily chamber in a 300 Win Mag.

If you want the max possible performance out of a 7 get the STW, The RUM I have is actually past the point of usable case capacity but it gains another 150 FPS on the STW. The 7-300 is a lot of screwing around for not much gain.

I was running 3250 fps in the Yukon with 160's exact same speed as the STW I had at the same time.

Well that is slightly better than I would have expected. What length barrels were on the two guns and what loads were you using?

The 7 Rem Mag spits them out about 3050-3100 depending on barrel length, 24" vs 26"and most STWs I have seen will move them at 3300 with a 26" Barrel so to get 3250 out of the Practical is pretty good. It is using quite a bit less powder than the STW and not a whole lot more than the Rem Mag. Now the Rum will move that at 3450, using 94 grains of Retumbo and a 26" tube, so like I say if its all about blazing speed the RUM is the answer. That said, I might just have to look into one of those Practicals if for no other reason than to see what I can get it to do.

I bought some 7mm RM brass a while back, either off AO or CGN,
there were a few 7mm-300 in the mix, got me thinking..

TBark

They were both running 26" barrels with muzzle breaks. The Yukon was on a Winchester with an RKS barrel, and the STW was in a sako 75.

Sure do miss that Winchester, just had to free up some funds and safe room....

For shooting long range I don’t really see an advantage to a 7 practical over a fast twist 300 wm shooting 215 bergers.

https://www.ballisticstudies.com/Kno...Practical.html

I have just finished load development for a 7mm Practical with the latest version of the Manson reamer, also using dies from Manson Reamers. The first thing I will point out is that the 7 Practical is not just a 300-7mm. The reamer was designed to produce a 30 degree shoulder and a longer neck, allowing the cases to grow through firing. Although not mentioned in the article above, a longer neck will protect the throat area from additional erosion by redirecting the gasses longer before they make contact with the throat.

The cartridge design is extremely thoughtful and this leads to a very accurate and effective cartridge that does everything better than all the other big 7's. Just like many precision shooters gravitate to the more accurate cartridges such as the 6.5X47 over the larger, faster cartridges like the 6.5CM, the 7 Practical provides long range hunters with a cartridge that is more efficient and more accurate than its rivals.

My platform is a long action Savage with a 28" Krieger Heavy Varmint barrel. I am pushing 180 ELD-Ms at 3190 and these rounds are producing 1" groups at 300yds. During initial load development I fired 6 rounds at .5 grain intervals into 1.5" group for my initial ladder test. The brass I used for this ladder was not even fired form yet. This further illustrates the inherit accuracy of this cartridge.

Although the 180 grain bullets don't carry the same weight of the big 30's out there, the ballistics between the two are no comparison....at least until you get to the 300 Norma and up. The 7mm is just an amazing projectile that seems overlooked all too often.

I will continue to work with this cartridge and if I have any additional information I will share it. Feel free to hit me up with any questions.

Havi g ow ed six 7mmstw rifles as we as a 7mmRUM, I managed about 75fps more with the RUM , both with 26" barrels. The .RUM case is just too large to gain much with a ,.284" bullet. As to the 300wm case providing the same velocity as the stw case with the same bullet, you either aren't running the same pressure, or the optimum powder with each.

A 7mm PRC would be an interesting project. With the 180 erger Hybrid seated as shown it would hold virtually the same amount of powder as a 7mm SAUM with the bullet seated to 2.95" OAL. It would work great in an action designed for a 3.6" belted Magnum cartridge but the belt would be eliminated. The RL 26 data is estimated but actual data from a 7mm SAUM with a 26" barrel mounted on a Defiance Ultra lite Action.

[IMG]http://i920.photobucket.com/albums/a...pshxju6uyt.jpg[/IMG]

These 6.5 PRC Hornady Match Grade bushing dies are available at X-Reload and would work with the proper bushing.
https://x-reload.com/hornady-6-5-prc...2-die-set.html

6.5 PRC brass is also available at X-Reload.
https://x-reload.com/hornady-brass-6...med-50-bx.html