6.5 creed magnum

[95huskers]

Maybe this has already been discussed, but will this new ammo cause issues with standard suppressors rated to 300 WM?

 

[The Guide]

Maybe this has already been discussed, but will this new ammo cause issues with standard suppressors rated to 300 WM?

80,000 psi 7mm Backcountry ammo didn't seem to bother any suppressors that I heard of. I don't foresee any issues for a magnum rated can under normal rates of fire.

Jay

 

[JohnJohnson]

80,000 psi 7mm Backcountry ammo didn't seem to bother any suppressors that I heard of. I don't foresee any issues for a magnum rated can under normal rates of fire.

Jay

I'd be a tiny bit worried if I had a Scythe Ti but that's not the ammo's fault.

 

[919]

80,000 psi 7mm Backcountry ammo didn't seem to bother any suppressors that I heard of. I don't foresee any issues for a magnum rated can under normal rates of fire.

Jay

I got a no go for my Jolene when I asked Resilient about using it ona 16” 7mm BC

 

[Dan Carey]

Media hype can't overcome Physics.

 

[JohnJohnson]

Media hype can't overcome Physics.

You've got me curious. What physics are you talking about?

 

[The Guide]

I got a no go for my Jolene when I asked Resilient about using it ona 16” 7mm BC

Is it rated for a 16" magnum cartridge? Most non Ti printed cans are rated for no less than 20" magnum cartridges. Both the Jolene L and Jolene S are rated for (22” – 300 PRC, 300 Win mag, 6.5 PRC, 270 Win, 7mm mag) as per Silencer Shop. I wouldn't expect that suppressor to get the nod for ANY magnum or long action cartridge in a 16" barrel based on that information.

Jay

 

[The Guide]

I'd be a tiny bit worried if I had a Scythe Ti but that's not the ammo's fault.

I mean, people have blown them up with a 223 so....

Jay

 

[Dan Carey]

Simply stated increased pressure is increased pressure. Everything has its limits.

 

[HandgunHTR]

Simply stated increased pressure is increased pressure. Everything has its limits.

Peak pressure and uncorking pressure are two completely different things.

 

[Dan Carey]

Define "uncorking"

 

[Castle Rock]

Define "uncorking"

Surely you can work that one out.

 

[HandgunHTR]

Define "uncorking"

Uncorking Pressure

For those who think it's easier to annoy you than to Google 'Uncorking pressure' themselves.

letmegooglethat.com

 

[Dan Carey]

Thats what I thought.

 

[DangerRanger]

If I remember correctly, and I may not,

Unknown mentioned much more violent muzzle exit pressures/characteristics for very overbore cartridges like 6um compared to even larger cartridges with more powder capacity due to the bore size compared to volume. I believe that’s the uncorking pressure referenced.

I’m unsure how that compares to higher chamber pressures, but I’d imagine it’s different

 

[omicron1792]

If I remember correctly, and I may not,

Unknown mentioned much more violent muzzle exit pressures/characteristics for very overbore cartridges like 6um compared to even larger cartridges with more powder capacity due to the bore size compared to volume. I believe that’s the uncorking pressure referenced.

I’m unsure how that compares to higher chamber pressures, but I’d imagine it’s different

Yeah it’s interesting how suppressors have barrel length restrictions. It’s obviously more violent the shorter the barrel is, but I don’t really know why. It’s a metal tube, everything is coming out the end… no matter what the length is. So I don’t really understand all of it.

 

[nm.otter]

it’s interesting how suppressors have barrel length restrictions. It’s obviously more violent the shorter the barrel is, but I don’t really know why.

Unburned (i.e. still burning) powder is far harder on the suppressor than hot gases are.

 

[Bluefish]

Yeah it’s interesting how suppressors have barrel length restrictions. It’s obviously more violent the shorter the barrel is, but I don’t really know why. It’s a metal tube, everything is coming out the end… no matter what the length is. So I don’t really understand all of it.

When the bullet leaves the barrel, the pressure may still be 10k psi+. Depends on barrel length and powder amount, and burn speed. A long barrel with little powder may be 3k. That pressure has to be contained by the can. I ran across some video of clear suppressors showing the flames inside upon firing. Quite violent. Showed why cans get eroded and can come apart.

 

[omicron1792]

When the bullet leaves the barrel, the pressure may still be 10k psi+. Depends on barrel length and powder amount, and burn speed. A long barrel with little powder may be 3k. That pressure has to be contained by the can. I ran across some video of clear suppressors showing the flames inside upon firing. Quite violent. Showed why cans get eroded and can come apart.

I see that.

But if you think about it, all the pressure has to come out the end of the barrel. It has no where else to go.

So it must just come out slower with a longer barrel, stretching out the peak impulse.

No matter the length of a barrel, the exact same total amount of energy must come out the end of the barrel.

See what I’m saying?

 

[RME]

I see that.

But if you think about it, all the pressure has to come out the end of the barrel. It has no where else to go.

So it must just come out slower with a longer barrel, stretching out the peak impulse.

No matter the length of a barrel, the exact same total amount of energy must come out the end of the barrel.

See what I’m saying?

Here's a pressure curve in comparison to barrel length. Notice that the pressure peaks within the first couple inches. From there, the pressure is rapidly dropping as the bullet moves down the barrel. An eyeball estimate of the graph looks like a ~5,000 psi drop in muzzle pressure from 15" to 20".