Balanced 7mm battle to take on the 300's

[Zero333]

In my opinion the 7 RSAUM is the best balance between barrel life, ballistics and recoil.

There are other very similar wildcats. But no need to reinvent the wheel every time you want something else.

 

[Rdlningcltchdmpr]

I'm thinking of settling on a single 7mm rifle instead of a two rifles in 6.5 PRC and 300 NM/PRC. The question is just what 7mm. I'm planning on a canyon type rifle that will mostly be used for target and steel shooting as well as the odd mountain hunts, but would be willing to push the barrel length to 28". The balance that I'm trying to achieve (given that it isn't realistic to achieve both) is something between closely approaches the ballistics of 300 PRC with 230gr bullets while shooting a load that isn't too abrasive on the components like brass and the barrel.

With regards to ballistics, I assume one will be looking at the heavier 7mm bullets close to or exceeding 3000fps? I would also like to run lower pressure loads with a colder burning powder, whiles not ignoring case design. Would also prefer something with good brass and something without a belted case.

Is the 28 Nolser (ADG and Peterson brass) the logical option and what about the 7mm Blaser (Norma brass)? Any news or insight on the long awaited 7mm PRC? Also had a look at the 7mm LRC (RCC brass) but there isn't any load data. Any other 7mm's that you would like to through into the mix or some experience (accuracy and consistency with rounds etc.) that could add value to subject.

7 short mag can do. . a 7 short mag has set some records i think at 1000 yds.

 

[warrbuk]

If you plan to play more than hunt I would run one of the smaller 7mm's several good suggestions above to push a 180-195 class bullet. A 28N or 7x300 PRC or WM would be a great hunting round for extended distances but they won't last.

7 RSAUM with 180's... it should double the round count of the big 7's.

 

[rardoin]

My preliminary results with the 190 A-tips at 2790 fps are encouraging but only did seating depth testing at 100yds with an arbitrary charge that happened to fall into the top of the velocity range I want to investigate. I'll do a charge ladder at 900+ soon and know more soon. Out of the six seat depths I tested in a 7 mph cross wind three had vertical at .19" and under and the largest group of the three was .23". I'm encouraged but still too early in the process to know much.

 

[whatwind?]

@rardoin

how many grains of xxxx does the Sherman take for the 190’s to get to 2800?

 

[rardoin]

In my rifle, 30” barrel, it takes 60.5gr H1000.

 

[NC308]

What about a 7mm STW? With today’s slow burning powders it should push those heavier bullets no problems. Not sure about the recoil?

 

[284winner]

Interesting. I'm seriously thinking I will shorten and thin a shot out Heavy Gun BR rifle that is a straight 284.
My dad always said, "Beware the man that only needs one shot!" And I have a sporter stock the action will fit right in.
My benchrest/F Open rifle normally shoots 180 gr ELD-M but for hunting, I will use 162 gr ELD-X. That load will go at ~2945 fps from 28". That will put down any North American game out to 1000 yd. I would be happy with a 24" barrel as my current rifle is a VZ24 action with a WWII 7X57 that shoots 162 A-MAX at 2850 fps and shoots 1 MOA at 100 yd.
I don't understand the need for a magnum anything

While I agree, that wouldn't be a good match for the 30 magnum. I think the 30 caliber bullet in 230+ will out gun the .284 caliber bullet in the 190 class for an ELR option when environmental conditions are bad. On a windless day, the match is close