7mm Backcountry dies and load data

[Monte F]

Let’s hope they’re not just bore sighted with their new rifle when they head out.

Unfortunately many are that, just got the new rifle from whichever major retailer sells them with a bore sighted scope and think they are good to go. I mean it has a holdover reticle and must be ready to go long range hunt. Even though with their old rifle they had a hard time keeping it on a pie plate at 50 yards.

 

[Dos XX]

This cartridge was a candidate for a military solicitation, probably the one that was awarded to Sig for the 277 Fury. I imagine Federal has quite a bit of money invested in it and would like to recoup some of it.

 

[nakneker]

This cartridge was a candidate for a military solicitation, probably the one that was awarded to Sig for the 277 Fury. I imagine Federal has quite a bit of money invested in it and would like to recoup some of it.

Makes sense.

 

[Adam in WI]

This cartridge was a candidate for a military solicitation, probably the one that was awarded to Sig for the 277 Fury. I imagine Federal has quite a bit of money invested in it and would like to recoup some of it.

I find that hard to believe with an overall length of 3.340.

 

[jpjulian]

Pistol or straight wall dies only require a carbide insert in the bottom of the die. A tapered case with a shoulder and neck would have to be (almost) entirely carbide; that would be beaucoup bucks.

Yep!

 

[jpjulian]

I can see why they created the cartridge. It’s attractive to guys shooting suppressors out of short barrels, I can understand that. I’ve been using suppressors the last few years and screwing a suppressor on a barrel that is 22-24 inches long and then having a final barrel and suppressor length of 27 inches plus is really annoying out in the field. I use Eberlestock packs and those long smoke poles don't fit very well in the gun pouch. I think that’s the market they are targeting.

Post #10 is where my heads at, lots of valid concerns. I won’t even entertain a 7BC if reloading is prohibitive, either by cost or procedure. You have to be able to tune a load if you’re gonna shoot at range, factory ammo isn’t helpful. Different lots of bullets and powders, no control over seating depth, I haven’t shot factory ammo in decades. That’s a big negative for me.

My .223WSSM is psychotic enough to load for plus I don't have any need for nor any desire for a magnum and its associated recoil. And the blast from an 80,000 psi round from a 20" barrel is sure to be intolerable.

 

[Dos XX]

I find that hard to believe with an overall length of 3.340.

You find it hard to believe it was designed for the military? Look around on their website and report back.

 

[drop_point]

This cartridge was a candidate for a military solicitation, probably the one that was awarded to Sig for the 277 Fury. I imagine Federal has quite a bit of money invested in it and would like to recoup some of it.

I haven’t seen anything about this cartridge being submitted for military adoption. I’d love to see more info about this.

 

[Fclassfool]

I haven’t seen anything about this cartridge being submitted for ministry adoption. I’d love to see more info about this.

Driven by the U.S. military’s need for improved performance ammunition, Federal tested many materials at high pressures to develop a one-piece case configuration that would be reliable and efficient to manufacture. Reaching those numbers required considerable R&D over the past six years in creating Peak Alloy casings, for now a product unique to Federal.

“Peak Alloy delivers everything we dreamed it would,” explained Federal’s Centerfire Rifle Ammunition Engineer Brad Abramowski. “It can be loaded at a maximum chamber pressure of 80,000 pounds per square inch and achieve 3,000 fps velocities with 170-grain class bullets out of 20-inch barrels.”

 

[drop_point]

Driven by the U.S. military’s need for improved performance ammunition, Federal tested many materials at high pressures to develop a one-piece case configuration that would be reliable and efficient to manufacture. Reaching those numbers required considerable R&D over the past six years in creating Peak Alloy casings, for now a product unique to Federal.

“Peak Alloy delivers everything we dreamed it would,” explained Federal’s Centerfire Rifle Ammunition Engineer Brad Abramowski. “It can be loaded at a maximum chamber pressure of 80,000 pounds per square inch and achieve 3,000 fps velocities with 170-grain class bullets out of 20-inch barrels.”

That’s talking about the case technology, not necessarily the cartridge. The NGSW program that created the .277 Fury actually commanded a 6.8mm/.277 cartridge so the Backcountry wouldn’t have been accepted as submission.

 

[drop_point]

I find that hard to believe with an overall length of 3.340.

I’d agree. The US Military contract required a 6.8mm projectile and was designed to replace the 7.62x51 NATO cartridge and be functional in an M240.

The mention of military technology in the marketing has to be the alloy that was developed to get to the speeds the contract required, not the 7mm Backcountry round.

 

[Adam in WI]

You find it hard to believe it was designed for the military? Look around on their website and report back.

Concepts used in this cartridge, maybe. But being as long as the .30-06 begs the question; what's it going to fit in?

 

[CJ6]

Concepts used in this cartridge, maybe. But being as long as the .30-06 begs the question; what's it going to fit in?

WAG....Replacing the big 30s for LRS.

 

[L0NER]

Even though not cost effective. Maybe primed case will be offered for the reloader. I say primed only because at that pressure I’m sure the primers will need to be crimped.

 

[Bc'z]

Even though not coast effective. Maybe primed case will be offered for the reloader. I say primed only because at that pressure I’m sure the primers will need to be crimped.

In the video posted there was mention of all the primers being proud to case head

 

[209jones]

Watched a show yesterday,( Guns & Ammo mag) Fed marketing guy, said the cases were also plated for corrosion. How that will behave vs say a brass plated case, for reloading purposes, have to wait and see.

 

[ncwg2boatguy]

Doesn't Dillon make carbide dies for 223 and 308?

Yes