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subsonic wont cycle

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614 views 31 replies 9 participants last post by  rugered  
#1 ·
I have a brand new ruger 350 legend ar with a suppressor on it. it cycles fine with hornady 165 ft buy will not cycle with hirnady subsonic 250 subx
 
#3 ·
is there any downsides to altering my gun,I heard things from buffers to springs, will they make normal ammo shoot weird or damage gun. kinda upset with ruger for not being set up right that lowered my opinion of them
 
#6 ·
No it won’t harm anything. Adjustable gas blocks are a standard addition to most ar platforms when running a supressor, especially if you want to set it up to shoot sub Sonic’s. The back pressure on an ar determines if the gun will cycle or not, no two ammunitions are the same as far a pressures. This isn’t a ruger thing, welcome to gas guns and supressors. lol. There’s nothing to it. Do a little research on what guys are using with your setup.
 
#12 ·
these guys a reputable and say gas block can only lower my gas not increase it so I don't think it will help
That is correct, the gas block does what the name implies, blocks or diverts gas delivered to the Bolt Carrier Group (BCG). A gas block cannot deliver more gas than the rifle port size allows without a block. It is for a gun that is over gassed, you are under gassed. I like a gas block because you can finely tune an over gassed gun. You may find you ultimately want one "after" you fix your current problem. If you go to lighter springs or buffer to be able to shoot subsonic you may very well, and I suspect you will, find now you are over gassed with standard rounds. So after the lighter setup put on an easily adjusted gas block, one setting for subsonic and a gas restricted setting for standard.

I have a superlative arms gas block and like it a lot, but the gun came overgassed as they often do to operate with a wide range of bullet weights. Below is an excerpt from the gas block manual.

Image
 
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#9 ·
No need to be upset with Ruger. Again you need an adjustable gas block. Go on YouTube and watch a few videos on them and maybe a few on how an AR works.

Pick a bullet you want to shoot and then tune the gun to them. You’ll notice less recoil, function better, and be less wear on parts when tuned right. Again YouTube is your friend here.
 
#11 ·
its an anechoic titanium was like 1500. gotta find box for exact and will post tomorow. but what ive read is the adj gas block wont increase gas so will it still help. did you watch my video. its only 4 min.
 
#15 · (Edited)
Get an adjustable gas block and drill your gas port one drill size larger than it is now. Assemble and try with subs. Drill one size larger again if the 1st size didn't work. Once you get the gun cycling with Subs, you then use the gas block to adjust to the setting that runs standard ammo. Switch to the setting that runs subs when using subs.

When I say one drill size, I don't mean the next size up in typical standard drill packs. You have to find what size the gas hole is (typically .076, but definitely not always) and increase it .002 at a time until it cycles the subs. You'll have to go find bits in that range unless you already have an extensive drill bit collection.
A search online will tell you what size gas port the manufacturer of your rifle/barrel uses and work up .002 at a time from whatever size yours is. Usually one or two sizes up does it. I have to go to .080 with one.
PS: Don't over-do it. Once the gun cycles subs with the gas port drilled and gas block fully open, stop drilling the hole any larger. Then you can adjust the gas block to cyle the other ammo.
 
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#16 ·
Are you running your gun wet or dry?
I soak all my BCGs is 0w motor oil, and reassemble.

I have an adjustable BCG on my 15 and a AGB on my 10.
Suppressed in both instances overgassed.
I'd weight the buffer tube just for general knowledge of it.
And like others have said- check your gas block alignment via an air hose.
 
#20 ·
Are you running your gun wet or dry?
I soak all my BCGs is 0w motor oil, and reassemble.

I have an adjustable BCG on my 15 and a AGB on my 10.
Suppressed in both instances overgassed.
I'd weight the buffer tube just for general knowledge of it.
And like others have said- check your gas block alignment via an air hose.
I think dry but I oil it. never heard wet or dry before.
 
#17 ·
according to the internet an adjustable gas block appears to be the fix:

AI Overview



Assuming the "anechoic titanium suppressor" is a model like the AnechoX 35 or AnechoX 35L, it is designed to cycle with Hornady's 250-grain 350 Legend subsonic ammunition
. Cycling reliability will depend on your specific firearm, but the ammo and suppressor are compatible.

Ammo and suppressor compatibility
  • Ammunition: The Hornady 350 Legend 250-grain load is a subsonic round designed to perform best with a suppressor. It is designed to function reliably in various firearm platforms, including semi-automatics.
  • Suppressor: Anechoic's X35 and X35L models are explicitly advertised as compatible with 350 Legend. The suppressors are also made to handle the lower pressures of subsonic rounds.
Potential cycling issues
Since the Hornady 250-grain load is subsonic, it has a lower powder charge than a standard supersonic load. This results in less pressure to cycle the action of a semi-automatic firearm.

For this reason, some semi-automatic rifles may have trouble cycling subsonic rounds.
  • Firearm tuning: If you experience cycling problems, you may need to adjust your firearm's gas system. This could involve using a lighter buffer or an adjustable gas block to ensure there is enough gas pressure to cycle the bolt.
  • Testing: Test the ammo and suppressor combination with your firearm to ensure reliable function. According to reviews, the Anechoic suppressor has "phenomenal low back pressure," which helps with semi-automatic reliability.
Final recommendation
Overall, the Hornady 350 Legend 250-grain subsonic ammo and an Anechoic X35 or X35L suppressor are designed to work together, so reliable cycling is highly likely. However, for a semi-automatic, function is never guaranteed until you test it yourself. If it is a bolt-action rifle, you will manually cycle it, so you will not have any cycling issues.
 
#19 ·
according to the internet an adjustable gas block appears to be the fix:

AI Overview



Assuming the "anechoic titanium suppressor" is a model like the AnechoX 35 or AnechoX 35L, it is designed to cycle with Hornady's 250-grain 350 Legend subsonic ammunition
. Cycling reliability will depend on your specific firearm, but the ammo and suppressor are compatible.

Ammo and suppressor compatibility
  • Ammunition: The Hornady 350 Legend 250-grain load is a subsonic round designed to perform best with a suppressor. It is designed to function reliably in various firearm platforms, including semi-automatics.
  • Suppressor: Anechoic's X35 and X35L models are explicitly advertised as compatible with 350 Legend. The suppressors are also made to handle the lower pressures of subsonic rounds.
Potential cycling issues
Since the Hornady 250-grain load is subsonic, it has a lower powder charge than a standard supersonic load. This results in less pressure to cycle the action of a semi-automatic firearm.

For this reason, some semi-automatic rifles may have trouble cycling subsonic rounds.
  • Firearm tuning: If you experience cycling problems, you may need to adjust your firearm's gas system. This could involve using a lighter buffer or an adjustable gas block to ensure there is enough gas pressure to cycle the bolt.
  • Testing: Test the ammo and suppressor combination with your firearm to ensure reliable function. According to reviews, the Anechoic suppressor has "phenomenal low back pressure," which helps with semi-automatic reliability.
Final recommendation
Overall, the Hornady 350 Legend 250-grain subsonic ammo and an Anechoic X35 or X35L suppressor are designed to work together, so reliable cycling is highly likely. However, for a semi-automatic, function is never guaranteed until you test it yourself. If it is a bolt-action rifle, you will manually cycle it, so you will not have any cycling issues.
It seems to be a combination, I think that it might be the buffer. Several people have said that and springs, and then I probably will need something to do with the gas block to fix whatever changes from changing those two things. seems like it's gonna have to get to the gun dealer.
 
#25 ·
Yes all suppressors will have an added bp and I haven't really heard of many issues like yours- they were specifically designed for sub sonic use in SA platform.
How is cycling without suppressor with Subs and supers?

....there's nothing wrong with doing investigations on your own. Such as checking spring and buffer. Pulling your BCG....soaking it in new light weight motor oil and letting drip dry.
 
#27 ·
Check the gas tube to make sure it is clear and not bent.
 
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#28 ·
ruger said I prob need to get a weighted buffer . or a buffer and weighted adjustable gas lock cant rememberr. but need to take to gunsmith guns doesntaccept suns. its sad cuz it has the threads for a supprespressor it should shoot the ammo. it has owered my expectations of ruger. though they seem to have good customer service ar is not up to par for 1300.
 
#29 ·
I think you are being too hard on Ruger. If I had to guess, the vast majority of people shooting a 350 legend are not using subs. So why would they tune it for subs cuz then all the people shooting supers would complain. Also the barell being threaded is not just for suppressors. Lots of options there.

With a little time and effort, I think you could get this gun shooting right. And if you really want to get rid of the broken thing, I’ll buy it off you for $200. (y)
 
#30 ·
lol great deal thanks, its fine for regular ammo just upset cuz I should bought something else boils down to now enough research but for the price you'd think it was more usable without alterations. maybe other brands are the same way.
 
#32 · (Edited)
I can understand your frustration. You could build a BCA or Palmetto for $400 if you just wanted something to modify and play around with. (Shameless endorsement alert!) I have a BCA NIB 350 legend upper in the classifieds if you want to add to you collection of ARs.

There are a lot of AR gun butchers around that will take your money and maybe create other problems. Might as well look at it as a sunk cost, evaluate the advice on here, and make youtube your friend. I think this is an easy fix and would view it as a learning experience (experience-what you get when you don't get what you want).
 
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