Blowback with suppressor?

Sig SSG 3000.
Shot fine with no suppressor. I have had the gun for 6 months or so, put a couple of hundred or so on it.
Put a Sig QD.338Ti on it and it's blowing the primers out------.
Why?
With and without supressor?
Handloads?

Untelated to the suppressor? Fouling? Incorrect powder weight? Other primers? Wrong seating depth (too close to the lands)?

Could be a lot of things, but to me, adding a suppressor should not be one.
 
With and without supressor?
Handloads?

Untelated to the suppressor? Fouling? Incorrect powder weight? Other primers? Wrong seating depth (too close to the lands)?

Could be a lot of things, but to me, adding a suppressor should not be one.
Bought the gun used, was clean, have shot it for 6 months, probably 200-300 rounds at least through it.
Factory loads, Freedom Munitions, .308 168 BTHP. Never had an issue.
Put the suppressor on, and it seems to be an issue.
I did see one small part fall out of the mag area, like a small roll drum, have no idea where it came from, not the bolt face pin.
I will look for a parts diagram see if I can find it.
 
Bought the gun used, was clean, have shot it for 6 months, probably 200-300 rounds at least through it.
Factory loads, Freedom Munitions, .308 168 BTHP. Never had an issue.
Put the suppressor on, and it seems to be an issue.
I did see one small part fall out of the mag area, like a small roll drum, have no idea where it came from, not the bolt face pin.
I will look for a parts diagram see if I can find it.
IIRC there are no parts in the action that looks like you described.

To me, it sounds like there is something creating excessive pressure in the chamber. Carbon ring or fouling of some sort. Or a burr or other "tool" marks.

Having had two, what I would do is to disassemble it and inspect the chamber carefully with the barrel taken of the action.

The rifles usually are top notch for a factory gun, even getting acclaim from Lowlight on occation.
 
Wait wait wait..... you got parts that fell out of a rifle and ya just.... fuck it and kept on shooting? Kinda scary. Can we see a pick of what came out of the rifle?
I didn't actually "See" the part come out, i felt something when I slide the magazine out, I looked around and the next bench has this small part, and I "assumed" it was from my gun, upon retrospect, I think it was the primer cap that I felt fall out.
 
IIRC there are no parts in the action that looks like you described.

To me, it sounds like there is something creating excessive pressure in the chamber. Carbon ring or fouling of some sort. Or a burr or other "tool" marks.

Having had two, what I would do is to disassemble it and inspect the chamber carefully with the barrel taken of the action.

The rifles usually are top notch for a factory gun, even getting acclaim from Lowlight on occation.
I didn't see anything abnormal, dirtier than usually, but not as dirty as some others I have seen.
There was some carbon on the bolt face where the cap sits.
Barrel and chamber not bad, not perfectly clean, but nothing worse than I have seen with a few different guns.
But, something isn't happy.
This is the little "plug" or "pin" I found on the ground, it is VERY magnetic.
I don't see it in a parts breakdown, but what I find on-line is not the best breakdown.
 

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That pin is probably your ejector pin since your bolt seems to be missing one.
Except this then, but that was too obvious...

Carbon ring is a build up of carbon in or at the lands.

Remove the barrel and inspect the lands and rifling.

I don't know where you live, but here are some excellent fiches:

 
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Freedom Muntions ammo used to be crap, I odnt if anything has changed over the last 5 years or so. I bought 1k reman 223 from them once, they were blowing primers, they replaced it with ammo that would barely run an action in an overpassed AR-15. they advertised 3200fps with their 55 FMJ, the second batch was like 2800 out of my 26" barrel.
 
Freedom Muntions ammo used to be crap, I odnt if anything has changed over the last 5 years or so. I bought 1k reman 223 from them once, they were blowing primers, they replaced it with ammo that would barely run an action in an overpassed AR-15. they advertised 3200fps with their 55 FMJ, the second batch was like 2800 out of my 26" barrel.
I bought it when I was "new". Just use it for plinking now.
This might be the issue, since I have the gun this far down, I will pull the barrel and inspect, then try different ammo.
 
Re read your posts. Have you tried anything but Freedom Munitions through this gun/suppressor? Freedom uses "once" fired brass for their reloads and I wouldn't be surprised if its just loose primer pockets causing this.
 
I will parrot a couple other people and recommend different ammo before you do anything else. I had multiple split cases with Freedom Munitions. Never have had it happen again in the 1000s of rounds of fired of other brands.
 
I have shot the gun with Freedom and Other loads without the suppressor, never saw this issue.
The Freedom was the first and only loads with the suppressor.
I will take the barrel off, take a looksee, clean, then shoot a differen ammo, without the suppressor, then with, and see what we get.
The gun has a good kick with the suppressor on, I don't remember it being that strong with a brake on it.
This would be my first shots with any suppressor, so I don't know what to expect.
Appreciate all the insight.
 
I don't know about Freedom Munitions. I've only ever shot Norma factory ammo or hand loaded in mine. It seems you should give them a wide berth.

I've never heard, or experienced, a suppressor causing over pressure in a bolt gun.

As for recoil and suppressors, they mitigate some of the recoil, but not all. And definitely not as much as a good brake.
 
I didn't see anything "Hincky" looked all pretty good to me, couple of little scrapes and burs I cleaned up from the wayward primer.
No missing parts that I saw.
 

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Federal 168gr match will show pressure signs when using my suppressor but not without (in my Rem 700). It's the only one, all other factory or handloads I have tried have not.

The easy thing to do is try some other ammo.
Yessir, that is the plan. Put everything back together, clean and spiffy.
We shall see------.
 
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Pretty much any of the camera with mirror bore scopes if you search ebay or similar will fit in a 308 barrel, I bought one that plugs into a mobile phone for 20AUD I have also bought a high quality unit with multiple mirror sets with its own screen and on board memory as I like independent devices, but that shouldn't be necessary to see a carbon ring.
 
Could be a headspace issue. Headspace is determined by the cartridge dimension, in this case shoulder to rear face. Is this particular to any one brand of ammo? Does seem too coincidental with the suppressor, however.
 
I am amazed at the folks on this site that support the Chinese.
Amazes me.
And, there is no carbon buildup on the gun, I don't need a Chinese camera to tell me that. A borescope would be nice, but I will not support Bezos or the Chinese for one.
Do you drive a car, use a computer, or a cell phone or any other electronic devices? If so, then you “support” the Chinese too. Maybe you’re special but most people’s “I don’t do Chinese stuff” is really nothing more than superficial feel-good crap that has no effect on anyone but themselves.

If you actually think you don’t spend money on Chinese products you need to dig a lot deeper into what the Chinese own and produce these days. It’s imposition avoid in this modern world unless you’re a hermit, and it’ll take a lot more than a few lost sales on Amazon to change it. I don’t like it either but reality isn’t affected by my feelings.
 
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I am amazed at the folks on this site that support the Chinese.
Amazes me.
And, there is no carbon buildup on the gun, I don't need a Chinese camera to tell me that. A borescope would be nice, but I will not support Bezos or the Chinese for one.
The phone/laptop/desktop that you used to state you don't support the Chinese was built by Chinese slave labor.
 
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Sig SSG 3000.
Shot fine with no suppressor. I have had the gun for 6 months or so, put a couple of hundred or so on it.
Put a Sig QD.338Ti on it and it's blowing the primers out------.
Why?
I had kinda the same thing with my Ruger 77/22 Hornet . Cases were sticking in the chamber and when I used my suppressor they really stuck . It was two part , I needed a better cleaning of the bolt/ chamber area AND the suppressor makes a little more pressure in the chamber , and it blows more crud back . I clean it way more often and keep it lubed and they still stick once in a while . And not after a lot of shooting either . Like after 4-4 rounds sometimes . It's noticeably worse with 35 g vmax , a little better with Nosler and not hardly any sticking with 45 g soft points . I'd make a guess you need to clean yote Gun a lot better . Hope you don't use bore snakes too. They are terrible
 
I don't know about Freedom Munitions. I've only ever shot Norma factory ammo or hand loaded in mine. It seems you should give them a wide berth.

I've never heard, or experienced, a suppressor causing over pressure in a bolt gun.

As for recoil and suppressors, they mitigate some of the recoil, but not all. And definitely not as much as a good brake.
I get over pressure in my Ruger 77/22 hornet with my suppressor . It gives me sticky cases . It's right away but more noticeable with 35 g bullets than with 45 g . Doesn't matter if it's super clean or not , but if it's not clean they do stick worse . It's the only gun I have that issue with
 
It is US citizens running US based companies offshoring manufacturing for increased profit for the most part which developed Chinese manufacturing capacity. Pretty big own goal, and makes the bootlicking and corporate worship even funnier when people turn around and winge about China making so much in your market now. It wasn't a Chinese attempt to attack your jobs or in country manufacturing capacity it was rich Americans.
 
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I had kinda the same thing with my Ruger 77/22 Hornet . Cases were sticking in the chamber and when I used my suppressor they really stuck . It was two part , I needed a better cleaning of the bolt/ chamber area AND the suppressor makes a little more pressure in the chamber , and it blows more crud back . I clean it way more often and keep it lubed and they still stick once in a while . And not after a lot of shooting either . Like after 4-4 rounds sometimes . It's noticeably worse with 35 g vmax , a little better with Nosler and not hardly any sticking with 45 g soft points . I'd make a guess you need to clean yote Gun a lot better . Hope you don't use bore snakes too. They are terrible

A suppressor doesn’t raise pressure in your barrel. Peak pressure has dropped off long before the bullet ever reaches the suppressor, and it doesn’t matter whether it’s a semi auto or a bolt gun or something else. Look elsewhere for the explanation to what you’re seeing; I suspect you already hit on it with your post above talking about blowback and fouling.
 
Re read your posts. Have you tried anything but Freedom Munitions through this gun/suppressor? Freedom uses "once" fired brass for their reloads and I wouldn't be surprised if its just loose primer pockets causing this.
"Once-fired" brass??

Maybe more than "once-fired"?

It may have correct spec primer pockets.

HOWEVER, if the OAL is too great, you will go WAY over pressure because the long neck is being jammed in by the taper of the chamber throat (leade) and strangling the bullet. NASTY pressure spikes will ensue. If the front of the neck looks "feathered", that may be your answer. It can get worse. If the brass is over-long AND has the shoulder shoved back a few extra thou during resizing, when the round fires, interesting things will happen around the primer area: Primers backing out and possibly leaking, before the internal pressure blows the case back against the bolt face, stretching the case web in the process. This is why case gauges are a boon to the serious reloader, much as headspace gauges areto the gunsmith AND hand-loader. If the rifle chamber gauges say the chamber is within correct tolerances and your brass comes out "funny", then......

Closely inspect primers removed from these fired suspect cases. If they have a bit of a "muffin" look to them, pressures are well up. Excessive primer pocket chamfering / decrimping can have a similar effect. The same peak pressure felt by the tail of the bullet at launch is also trying to blast its way out through the other "weak point", the primer and pocket. Try "name brand" (Federal, Hornady" etc.) factory ammo and compare the necks and primers and pockets. A major bunch of variables there, alone.

Find a gun-plumber who can evaluate your throat / leade dimensions. A barrel custom throated for light-weight or very slinky VLD bullets will prove a "challenge" if you try to feed it heavy / round-nosed types.
 
It is US citizens running US based companies offshoring manufacturing for increased profit for the most part which developed Chinese manufacturing capacity. Pretty big own goal, and makes the bootlicking and corporate worship even funnier when people turn around and winge about China making so much in your market now. It wasn't a Chinese attempt to attack your jobs or in country manufacturing capacity it was rich Americans.
Yep, but it starts here, with us.
People buying something for less, when we know it should cost more to make, and we get it in two days.
If we stop buying it, they will stop importing it.
You want a nice Carbon Fiber tripod?
$1300 make in the Goood Ol USA or $300 made in China sold by "Two Vets" or Vortex.
Marketing at it's finest.
 
I am amazed at the folks on this site that support the Chinese.
Amazes me.
And, there is no carbon buildup on the gun, I don't need a Chinese camera to tell me that. A borescope would be nice, but I will not support Bezos or the Chinese for one.

Could you explain your thought process here please? I’m genuinely curious what your motivations are for your comments in this thread; they don’t make sense to me but I’d like to hear it from your perspective.

You came here asking for help, but then pull this “holier than thou” virtue signaling stuff on the members who are actually knowledgeable enough to help you. Did it not occur to you that people would take offense and stop helping? Or did you just feel that it was more important to point out how disappointed you are in the rest of this group? Or what?

I mean, I get the idea of not buying cheap junk, but your motives are especially confusing considering that your gun problem was most likely caused by your own choice of cheap junk ammo. It’s no secret that you’d have gotten better quality from even the cheapest steel case
Chi-com ammo, so I’m guessing you had to have known that.

And I totally get the idea of not giving your money to our enemies, which China certainly is, but with seemingly half the country claiming loudly and openly that they’re also enemies of all conservatives, it seems prudent to look closer to home for the more immediate enemies. And of course you used Chinese electronics to tell the forum that you’re better than us because you don’t buy Chinese.

So please, help me understand your thought process. I’m trying to see things from the other perspective rather than assuming the most obvious conclusions, but this is a tough one.
 
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Could you explain your thought process here please? I’m genuinely curious what your motivations are for your comments in this thread; they don’t make sense to me but I’d like to hear it from your perspective.

You came here asking for help, but then pull this “holier than thou” virtue signaling stuff on the members who are actually knowledgeable enough to help you. Did it not occur to you that people would take offense and stop helping? Or did you just feel that it was more important to point out how disappointed you are in the rest of this group? Or what?

I mean, I get the idea of not buying cheap junk, but your motives are especially confusing considering that your gun problem was most likely caused by your own choice of cheap junk ammo. It’s no secret that you’d have gotten better quality from even the cheapest steel case
Chi-com ammo, so I’m guessing you had to have known that.

And I totally get the idea of not giving your money to our enemies, which China certainly is, but with seemingly half the country claiming loudly and openly that they’re also enemies of all conservatives, it seems prudent to look closer to home for the more immediate enemies. And of course you used Chinese electronics to tell the forum that you’re better than us because you don’t buy Chinese.

So please, help me understand your thought process. I’m trying to see things from the other perspective rather than assuming the most obvious conclusions, but this is a tough one.
Hmmm, pardon me.
I took up the sport when about 7m other people did last June. Never picked up a gun before, or certainly not often.
Bought some hand guns, then got an AR. Then got into long range. Bought what ammo was available at the time, which wasn't much. Learned what was "good" and what was not. Or what I thought was "good". Searched the interweb and found "Freedom Munitions", they had stuff, I thought it was "good" stuff, I bought it, shot it, and it was fine. Till now.
Started realizing quickly all ammo was not the same. So, I buy, when possible and from members here, Hornady, Lapua. But, I still had some FM, and so, with my new Suppressors that I ordered last November that just arrived, I shot it, and here I am. I honestly never new it was reloaded, now I know.
I may be new, but, I am a mechanic, I understand the importance of maintenance and quality. I clean my equipment. MUCH cleaner than some items I have purchased that have "Approx 100rnds and are "safe queens".
So. Someone suggested I buy a $20 camera and, yes, I am sorry, I went off. I own a business and do what I can to not buy Chinese "stuff" as A) It doesn't last, and B) It's not helping us.
Politics aside.
Now, this place is no different than other Forums, it's Clicky, and because I don't have 1000 post, or am not a sponsor, I am considered a no nothing.
Now, you want to get into Gates and Jobs, and whom ever other person who buys Chinese and Made in China to save and make a buck, I can't stop that. But, I try where I can. If more people would---------------------. It has nothing to do with who is better than who. And, that has nothing to do with politics.
What may I help you understand?
I appreciate all the feedback. I cleaned the gun, and saw nothing out of the ordinary, I will shoot it again on Sunday, with and without the suppressor and with The FR and some Sig ammo.
And, I do apologize for the Chinese rant, most likely to little too late, but still doesn't stop from from being aggravated about it or caring.
CB
 
My lord there is a lot of stupid advice being suggested in this thread. Primer came out, giant mark from brass flow into ejector. Yes, its over pressure. IT only happened with FM ammo. ITs not a carbon ring, short throat, or headspace issue.

BTW My computer, phone, and cars were built in the united states. You have no idea what device the OP is using or where it was made, so maybe shut you dumb fuck asses up about it. Attacking a guy for not wanting to help you support the CCP. Are you guys total fucking retards?

O.P Did you try other ammo again? I bet no problemo once you ditch the FM crap.
 
I will take that as a, yep, from you.

O.P didn't bring shit up, O.P said he didn't want to by a chinese product when it was suggested. You and others called him an idiot for it. Then continued on with a bunch of other deafest faggotry. Claiming most of his shit is from China, like you have any idea. Maybe go start a thread in the bear pit. This is not the place.

Could you please point out my incorrect grammar{via PM}. Seems you understood fine, so its probably a waste of time.
 
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