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Discussion Starter · #1 ·
Hi,

Not sure how many of You have experience with this rifle with a suppressor (silencer, not flash hider) mounted, but here goes!

Just today I tested my 581-series Tactical with a A-Tec CMM-6 suppressor, and I had an issue.
Tested various ammunition-brands, Federal Fusion (62 gr), Federal Power-Shok (55 gr) and Sellier & Bellot Match (69 gr HPBT), all ran well without the suppressor.

Precision is goodish so far, without suppressor it groups around 50 mm at 100 meters, but I stressed a bit, so I might get it below that.
WITH the suppressor though, I had 5 rounds in one single ragged 15-20 mm hole at 50 meters, not sure yet how that will fare on 100 meters.
Only thing that surprised me was that the impact point dropped 6-7 cm with the suppressor on, thought that was a bit much...

Suppression is good, sound a bit like a .22LR, and barely that. Note that this is subjective though, I was using hearing-protection, as I had two guys beside me with unsuppressed 30-06's, and we were on an indoor firing range... :p

I got tons of **** in my face after putting on the suppressor, lots of smoke and probably some soot and powder residue as well. But I can live with that, and I was expecting it after reading experiences from others.

However, with the suppressor mounted I had malfunctions with all of the abovementioned ammo, no exceptions. The mechanism cycles, but it doesn't strip a new round from the magazine, so I end up with a dry-fire. No jams or anything like that, it just doesn't chamber a new round. This happened every time with Fusion, and a little bit less with Power-Shok and S&B Match... I got maybe 3 rounds off without having to pull the handle.
I haven't tested the rifle without the suppressor after this; all I can say is that without the suppressor I functions flawlessly with all ammotypes.

Two notes:

I've installed a Buffertech buffer on the guiderod, full size and not slized in half; this has worked flawlessly without the suppressor.

The rifle is still very new; I've only fired 72 shots in it so far; maybe not completely broken in yet...?


Other Mini-14 users I've talked with, have said that with a suppressor the rifle cycles much harder, because of increased pressure and blowback, but it didn't really feel much harder for me tonite, although as mentioned I did get a fair bit of crap in my face when firing :p

Sooo....any ideas what's causing this?
 

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We can't use suppressors in the USA without an expensive BATF permit so we won't get to duplicate your issues. Somehow, the suppressor affects the amount or velocity of the gas through the gas bushing and to the op rod. I would shoot the rifle without the Buffertech. kwg
 

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We can't use suppressors in the USA without an expensive BATF permit so we won't get to duplicate your issues. Somehow, the suppressor affects the amount or velocity of the gas through the gas bushing and to the op rod. I would shoot the rifle without the Buffertech. kwg
the tax stamp is only $200 per can. go get a suppressor!

I have shot 2 of my minis with a can on them. pics/video floating around on this website.

yes, shooting a mini with a suppressor is dirty. a lot of that can be alleviated by adjusting your gas port bushing, as the backpressure created by the can is what's causing gas in the face. also very common on the ar15 platform (and all autos) but the ar15 can be almost "fixed" by using a gasbuster charging handle (or homemade variant). anyways, fiddling with the size of the bushing would help that.

I'd propose that this is also what's affecting your rifle. if I'm reading correctly, when the can is on, the rifle fires, but isnt bringing a new shell into the chamber (ie isnt cycling correctly). I'm wondering if its short stroking. that the bolt isnt cycling far enough backwards to "get behind" the next shell in the mag to bring it forward. if that's the case, (to me) that means not enough gas is being pushed thru the gas port to push the op rod back and cycle normally. so a larger gas port bushing sounds to be what you need. I would also think with a larger bushing, this would allow more gas to go out the "front" of the gun, rather than back into your face.

I'm pretty sure on both my minis that were "set up" for a can, both have larger gas port bushings.

I'd definetely start with that and see what kind of results you have. particularly since gas port bushings are a cheap test/fix.
 

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We can't use suppressors in the USA without an expensive BATF permit so we won't get to duplicate your issues. Somehow, the suppressor affects the amount or velocity of the gas through the gas bushing and to the op rod. I would shoot the rifle without the Buffertech. kwg
+1, first get rid of the buffers. Then if it does not work, change the bushing size.

I think it would be fun to have a supressed weapon, but will not pay the government $200. for something that should be free.

Another thing is I don't want the BATF up my wazoo.
I don't have any illegal weapons, but still don't want the extra attention some get when they have a supressed weapon.

If things keep going the way they are and you have a tax stamp, you are going to be highly suspect, after all "VY do you nned ah supressor, off to the camp you go".

The USA is changing, and not for the best.

John K
 

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Discussion Starter · #5 ·
Yeah, I'll try different things here, both firing a few more rounds in the rifle, to see if it "settles in", and removing the buffer if it still gives me grief. Only thing I find strange is that the can actually increases pressure, and so should give harder cycling, meaning the buffer really should not be a problem...

I actually heard more people having trouble with the buffer WITHOUT a can, the Buffertech buffer being to thick. But for me that hasn't been a problem. Only with the can... :wacko:

Oh well, I'll try a few things the next days ;)
 

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+1, first get rid of the buffers. Then if it does not work, change the bushing size.

I think it would be fun to have a supressed weapon, but will not pay the government $200. for something that should be free.

Another thing is I don't want the BATF up my wazoo.
I don't have any illegal weapons, but still don't want the extra attention some get when they have a supressed weapon.

If things keep going the way they are and you have a tax stamp, you are going to be highly suspect, after all "VY do you nned ah supressor, off to the camp you go".

The USA is changing, and not for the best.

John K
while I agree with you about "having to pay for something that should be free", it is what it is.

but dont make the mistake of thinking you're on a nazi list or something. particularly with the BATFE. your stamp is a tax stamp, which actually has nothing to do with the BATFE.

not to mention suppressors are MUCH more common now than they were 10 years ago. new suppressors can be added to the registry on both a form 1 and a form 4. machineguns for example, cannot. so there's only going to be more and more.

besides, suppressors have never been illegal.....
 

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Discussion Starter · #7 ·
Hehehe, here in Norway cans was legal to begin with, then they became illegal for a short period, and finally they became legal AGAIN, as they stay to this day :p

Funny thing though, one of the reasons they became legal again, was because the health department recommended it...to many cases of tinnitus :lol:
 

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Hehehe, here in Norway cans was legal to begin with, then they became illegal for a short period, and finally they became legal AGAIN, as they stay to this day :p

Funny thing though, one of the reasons they became legal again, was because the health department recommended it...to many cases of tinnitus :lol:
I have tinnitus. from shooting. imagine that. :wacko:

stupid US laws think only assassins have a use for them. how stupid.
 

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Discussion Starter · #9 ·
Well, we might be allowed cans here, but then again the rest of the weapons regulations we have might be seen as a tad strict...

At this time ALL firearms are registrered, and you also have to apply for a permit to your local Policedept. and have it granted after a background check, before you're given a permit to buy a firearm. This does not apply to cans though...strangely enough :) But I'm not complaining.

We tend to have the view here that any criminals probably wouldn't use a weapon that is legally registered on themselves for any crimes. As for silencers...well, if you have a unregistered weapon, AND can buy a silencer for it, then that will open up a few possibilities of course. I think I read something about you needing to have a firearmslicense for a weapon of a given calibre, to be able to buy a silencer for that calibre, but I'm unsure if it is enforced. Nobody asked me about my license when I bought my last silencer.

Anyways....with regards to suppressors of various kinds, You guys seem to have stronger regulations than over here. One issue that I just barely avoided, was the US State Dept. now being very scared of exporting rifles that are threaded and equipped with flash hiders. My Mini-14 Tactical was one of the last three that will be exported to Norway at least. The retailer that has been selling those just don't want the hassle of dealing with USSD for export licenses anymore. They didn't get a new export license for new rifles, but luckily had three remaining weapons on an old license; that's what saved me... :huh:
 

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Discussion Starter · #10 ·
Thread necro, sorry about that, but just realized I forgot to tell how this went.
I changed the recoilspring to Wolfs, and that helped a bit.
But the biggest change came when I started using 20-round mags instead of the 5-round hunting mags I'd been using in the beginning. With the 20-round, the problem has all but gone away.
Of course, the rifle is a lot more broken in now as well, I have put a few hundred rounds through it, so that might have helped.

Anyways....sorted!
 

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We can't use suppressors in the USA without an expensive BATF permit so we won't get to duplicate your issues.
:huh:
The tax is only $200. I bought my first suppressor while working at Wal-Mart. Only reason I haven't had any of my Mini's threaded is because I like to shoot manual actions suppressed.
 

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We can't use suppressors in the USA without an expensive BATF permit so we won't get to duplicate your issues. Somehow, the suppressor affects the amount or velocity of the gas through the gas bushing and to the op rod. I would shoot the rifle without the Buffertech. kwg
I don't know what your idea of expensive is, but a $200 federal tax stamp is a pittance in today's world. The law was enacted in 1934 and the price of the stamp has not changed. When the NFA was enacted, $200 was substantial.

My grandson easily spends $200 for a night out on a date. Many kids his age get $200/week allowance. Times have changed since I paid $20 to fill my 1969 Camaro SS 396 with premium gas.
 

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:huh:
The tax is only $200. I bought my first suppressor while working at Wal-Mart. Only reason I haven't had any of my Mini's threaded is because I like to shoot manual actions suppressed.
I concur.

I just took possession of a Remington SPS Tactical 16.5" .308 after it had been "upgraded". My YHM Titanium Phantom suppressor came in about the same time.

Manual actions are MUCH more quiet than autos, when properly suppressed.
 

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You cannot own a suppressor in Iowa. It's an Iowa violation to own one. You can start a corporation and own one but people cannot not. It's a 1977 law in Iowa. Back when the liberals had Iowa by the balls.

kwg
 

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Hi,

Not sure how many of You have experience with this rifle with a suppressor (silencer, not flash hider) mounted, but here goes!

Just today I tested my 581-series Tactical with a A-Tec CMM-6 suppressor, and I had an issue.
Tested various ammunition-brands, Federal Fusion (62 gr), Federal Power-Shok (55 gr) and Sellier & Bellot Match (69 gr HPBT), all ran well without the suppressor.

Precision is goodish so far, without suppressor it groups around 50 mm at 100 meters, but I stressed a bit, so I might get it below that.
WITH the suppressor though, I had 5 rounds in one single ragged 15-20 mm hole at 50 meters, not sure yet how that will fare on 100 meters.
Only thing that surprised me was that the impact point dropped 6-7 cm with the suppressor on, thought that was a bit much...

Suppression is good, sound a bit like a .22LR, and barely that. Note that this is subjective though, I was using hearing-protection, as I had two guys beside me with unsuppressed 30-06's, and we were on an indoor firing range... :p

I got tons of **** in my face after putting on the suppressor, lots of smoke and probably some soot and powder residue as well. But I can live with that, and I was expecting it after reading experiences from others.

However, with the suppressor mounted I had malfunctions with all of the abovementioned ammo, no exceptions. The mechanism cycles, but it doesn't strip a new round from the magazine, so I end up with a dry-fire. No jams or anything like that, it just doesn't chamber a new round. This happened every time with Fusion, and a little bit less with Power-Shok and S&B Match... I got maybe 3 rounds off without having to pull the handle.
I haven't tested the rifle without the suppressor after this; all I can say is that without the suppressor I functions flawlessly with all ammotypes.

Two notes:

I've installed a Buffertech buffer on the guiderod, full size and not slized in half; this has worked flawlessly without the suppressor.

The rifle is still very new; I've only fired 72 shots in it so far; maybe not completely broken in yet...?


Other Mini-14 users I've talked with, have said that with a suppressor the rifle cycles much harder, because of increased pressure and blowback, but it didn't really feel much harder for me tonite, although as mentioned I did get a fair bit of crap in my face when firing :p

Sooo....any ideas what's causing this?
Your best bet is an adjustable gas block. I went through this with mine. The Mini 14 doesn't do well over gassed with a can. The ADJ gas block will allow you to fine tune the gas with the can on or off.
 
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