Suppressor Puke...........

[jtallen83]

My SDN6 puked on S&B 300 BO  200 gr subsonnic. A few months ago my LGS showed me a chunk of jacket they claimed had come from this ammo and asked if I had had any issues, hadn't seen anything at that point. Today I got to learn two lessons, use the best quality ammo you can with a suppressor, somehow I escaped any damage on this one but is 20 cents a round worth the chance???? Now I knew but ignored the method of always have the muzzle facing down when manipulating the weapon. Didn't mention that to my Grandson and when he racked it a pile of jacket scraps came out of the suppressor and poured down the barrel. The amount leads me to believe there has been a few jacket seperations of late. Shook everything out inspected and fired another 30 rounds of Remington 220gr no issues. 

Dug some out of the MBT when I got home, 

Here is the ammo with lot stamp,

I spent at least 15 minutes with a pen light inspecting what I could inside the SDN6, all I see is a couple chunks of copper still lodged at the first baffle but the hole down the middle just shows an odd looking pattern of carbon buildup, no sign of anything being hit, not sure how that happens but that first baffle must be a tough bitch.

[Belt Fed]

Well crap, what makes the casing come apart like that? is it higher pressures?

[jtallen83]

4 hours ago, Belt Fed said:

Well crap, what makes the casing come apart like that? is it higher pressures?

No pressure signs on brass, it's subsonic so it shouldn't be that high a pressure. Rumors are this batch of 200 grain bullets they used has weak jackets or the bond between core and jacket is poor, finding nothing on the interwebs though. 

[392heminut]

On 7/4/2019 at 10:15 AM, jtallen83 said:

 that first baffle must be a tough bitch.

Most US suppressor manufacturers use something like Inconel (same alloy used for the exhaust valves in top fuel engines) for the first baffle because that is the one that is most susceptible to erosion from the hot gases. That's one of the reasons suppressors are more expensive in the US. Their reasoning for using a more exotic material (read 'more expensive') is sound though. Since we have to pay a $200 extortion fee to the Feds on top of the cost of the suppressor and it's not transferable we expect more out of our suppressors than shooters in other countries do, and the manufacturers do what they can to make them last as long as possible.

[Sisco]

I use that same ammo. Will DC it. Thanks.

[jtallen83]

9 hours ago, Sisco said:

I use that same ammo. Will DC it. Thanks.

Checked out the suppressor my dad uses, same SDN6, and it was free of jacket material. He is shooting from a lot of ammo we bought better than a year ago, same S&B 200 gr. though. Hopefully this is just a one lot issue, hate to lose a good cheap ammo for the 300, no time to reload now. 

[unforgiven]

When I got my SDN6 the had a promo and give you a .22 suppressor for $99.00.  The guy could not stress enough that you couldn't run anything but good jacketed ammo. I took a pass.

[sketch]

On 7/4/2019 at 9:15 AM, jtallen83 said:

My SDN6 puked on S&B 300 BO  200 gr subsonnic. A few months ago my LGS showed me a chunk of jacket they claimed had come from this ammo and asked if I had had any issues, hadn't seen anything at that point. Today I got to learn two lessons, use the best quality ammo you can with a suppressor, somehow I escaped any damage on this one but is 20 cents a round worth the chance???? Now I knew but ignored the method of always have the muzzle facing down when manipulating the weapon. Didn't mention that to my Grandson and when he racked it a pile of jacket scraps came out of the suppressor and poured down the barrel. The amount leads me to believe there has been a few jacket seperations of late. Shook everything out inspected and fired another 30 rounds of Remington 220gr no issues. 

Dug some out of the MBT when I got home, 

Here is the ammo with lot stamp,

I spent at least 15 minutes with a pen light inspecting what I could inside the SDN6, all I see is a couple chunks of copper still lodged at the first baffle but the hole down the middle just shows an odd looking pattern of carbon buildup, no sign of anything being hit, not sure how that happens but that first baffle must be a tough bitch.

I probably bought the same time ill have to check my boxes.. Thanks bro! It has ways been good for the price ammo, almost bought a bunch last week..

[Czgunner]

I've used a bunch of that over the years. Never had an issue. I've always considered S&B to be pretty decent ammo, though not top of the line.