Federal New Cartridge

[deerhunter628]

American reloading.

Thanks. I just set up notification for the hybrid cases when the come in stock. Are you able to run them pretty hot in regular actions. I will obviously work my way up but would love a little more velocity in my 16” 308. Im not looking for load data.

 

[z987k]

Thanks. I just set up notification for the hybrid cases when the come in stock. Are you able to run them pretty hot in regular actions. I will obviously work my way up but would love a little more velocity in my 16” 308. Im not looking for load data.

As long as the action can withstand one of the modern magnum case head rounds running at 65kpsi(6.5prc), it can handle a standard case head at 80k since it's less bolt thrust.
An unknown with the pure steel case is how much the case is gripping the chamber and how much of that thrust is being transferred to the bolt. But if they're still under 80k, I can't see how you couldn't just run this in any modern action.

 

[deerhunter628]

As long as the action can withstand one of the modern magnum case head rounds running at 65kpsi(6.5prc), it can handle a standard case head at 80k since it's less bolt thrust.

What powder have you had the best luck with in the 308. Again not looking for load data.

 

[Waterboy]

If this new case material is so great and improves velocity so much why wouldn’t they just come out with a new ammo line that uses it to increase velocity in multiple cartridges? The “new backcountry express” lineup that promises 100+ fps for your all your existing favorites. Seems like that would fly off the shelves like hotcakes instead of another magnum 7mm.

Does it need a special action to withstand the higher pressure? Doesn’t seem like it does with all the rifles they’re claiming it to be chambered in.

Exactly what I was thinking…

 

[z987k]

What powder have you had the best luck with in the 308. Again not looking for load data.

Look at faster powders. Ball powders for density and double base for the energy. Varget is a good place to start. I've had good luck with LT-30. You won't be able to get enough of a slow burning stick powder in a 308 case to even hit 80kpsi.

 

[Dos XX]

Look at faster powders. Ball powders for density and double base for the energy. Varget is a good place to start. I've had good luck with LT-30. You won't be able to get enough of a slow burning stick powder in a 308 case to even hit 80kpsi.

Do they use standard large rifle primers? Can you read pressure signs? What keeps the primer from coming out at 80k? Are the primer pockets really tight when you prime them?

 

[z987k]

Do they use standard large rifle primers? Can you read pressure signs? What keeps the primer from coming out at 80k? Are the primer pockets really tight when you prime them?

Standard primers work fine. You really cannot read the pressure on the case, there's nothing happening to the steel at all. The primer pockets are very tight after firing.

Primers generally don't even come out of brass at 80k.(if you're blowing primers in your brass case, you're north of 80k) So I wouldn't expect them to come out of steel that largely is not deforming to the same extent.

 

[wind gypsy]

You guys are making me want to do a 243 or 257 fury.

 

[Pescetism]

What powder have you had the best luck with in the 308. Again not looking for load data.

I don't think I have as much experience, yet, as the other posters but have found good velocity and ES/SD with TAC at the top end of published data. Still working on accuracy. Loads that trash brass cases don't have even slightly flatten primers in hybrid cases but not going to press our luck further in this rifle (AR10). As for forming 308 from Fury, one pass through a 308 FL die is working fine for us but I've had to trim most of them.

 

[deerhunter628]

I don't think I have as much experience, yet, as the other posters but have found good velocity and ES/SD with TAC at the top end of published data. Still working on accuracy. Loads that trash brass cases don't have even slightly flatten primers in hybrid cases but not going to press our luck further in this rifle (AR10). As for forming 308 from Fury, one pass through a 308 FL die is working fine for us but I've had to trim most of them.

Thanks for the info. I hope that brass comes in stock. I really want to try some. What velocity are you getting out of the AR10? What barrel length?

 

[wind gypsy]

A 16” spiral fluted carbon 7 mag barrel with a brake on it?! That thing is the bedazzled jeans, affliction t-shirt, and Bret Michaels cowboy hat of guns.

 

[z987k]

I don't think I have as much experience, yet, as the other posters but have found good velocity and ES/SD with TAC at the top end of published data. Still working on accuracy. Loads that trash brass cases don't have even slightly flatten primers in hybrid cases but not going to press our luck further in this rifle (AR10). As for forming 308 from Fury, one pass through a 308 FL die is working fine for us but I've had to trim most of them.

Ya, TAC is another that should work. CFE223 is another, leverevolution. Basically anything that runs well in a 223 is going to work pretty well for the 308 and 338 fury.

 

[Pescetism]

You guys are making me want to do a 243 or 257 fury.

I've considered 243/6 Fury but if I'm not mistaken it would essentially be the same as 243 AI. Just with a custom reamer and die. 257 Fury should be very similar to 25 Souper AI.

 

[Flyjunky]

Same bullet going faster.

Whee!




P

Same as the 7prc but many on here sure wet their panties over that gun.

It was said that the ‘ol 7 rem mag could do the same as the new 7prc if it had a newer fast twist barrel, smithed chamber, and handloads.

Well, the 7prc guys said it was for those guys who don’t handload to shoot the long, heavy, bc bullets.

Now something comes along to get even better velocity with more popular shorter barrels, with factory ammo, and they start crying foul just like the 7mag guys did.

Too funny

 

[z987k]

You guys are making me want to do a 243 or 257 fury.

Do the AI so you don't have to push the shoulder back. Or maybe you do a tiny bit, not sure on the exact dimensions. The 277 case is a 27-08ai.

 

[wind gypsy]

I've considered 243/6 Fury but if I'm not mistaken it would essentially be the same as 243 AI. Just with a custom reamer and die. 257 Fury should be very similar to 25 Souper AI.

Same in case capacity or velocity potential with the higher pressure? I though the fury case was a cun+hair bigger than creedmoor? Thus at higher pressure with steel case head more like 6.5 PRC case velocities?

 

[z987k]

Same in case capacity or velocity potential with the higher pressure? I though the fury case was a cun+hair bigger than creedmoor? Thus at higher pressure with steel case head more like 6.5 PRC case velocities?

Case capacity on 243ai and 243-277fury are going to be very very close. I don't think it'd make any sense to do a custom 243-277fury reamer, just neck it down and run it through a 243ai FL die. I'd expect 6PRC like performance. With 15ish grains less powder.
Or for a lot cheaper, if you have a 243win laying around, just play with the brass and make regular 243win brass from the hybrid case and see how it runs in the standard 243win.

 

[Pescetism]

Thanks for the info. I hope that brass comes in stock. I really want to try some. What velocity are you getting out of the AR10? What barrel length?

20" 168 TMK 2,650 fps was the highest "safe" load in once fired Federal brass. 2,695 fps had heavy ejector swipes and brass extrusion if the round "cooked" in a warm chamber.

 

[z987k]

20" 168 TMK 2,650 fps was the highest "safe" load in once fired Federal brass. 2,695 fps had heavy ejector swipes and brass extrusion if the round "cooked" in a warm chamber.

Federal doesn't make hybrid 277 fury brass. Are you talking just federal brass 308win at normal pressures?
Also, I would not shoot high pressure rounds from a standard AR10.

 

[Pescetism]

Federal doesn't make hybrid 277 fury brass. Are you talking just federal brass 308win at normal pressures?

Yes. No issues with the same loads in Fury cases.

Not my preference either, that's why we backed off to a load that was safe in standard brass. Using Fury cases is just to, hopefully, extend case life since they usually get beat up at normal pressures.