Having lots of trouble with my 22" 65 Cm aero upper bought it about this time last year and having a hard time getting it to cycle. Ive checked everything possible everything is good it cycling most factory ammo but my handloads are having alot of trouble cycling im useing data out of every book and site known to man and still short stroking. Ive worked up many loads and ladders and when i get to a published max load data its still having issues most of the time. I see that most data is shown for bolt guns not ARs for the 65. My bolt guns in 65 are tack drivers with that data but im woundering if it safe or if i shoud step up above the max a touch to get that little extra pressure and energy that the gas gun and buffer and spring is taking away from it vs the bolt golun being rock solid and will have more pressure with the bolt gun vs the AR. Any help is greatly appreciated
How are yall. New member but have been here many times reading.
- Thread starter Fighting the good fight
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Well if it’s every load then it’s not the load, it’s the gun.
Adjustable gas block would be my first order of business. Makes it easy to change gas without blowing your dumb ass up.
Adjustable gas block would be my first order of business. Makes it easy to change gas without blowing your dumb ass up.
I agree with Spife7980. I wouldn't default to a hotter load. I'd try an adjustable gas block and also, be sure you are cleaned and lubed sufficiently. New ARs can be a bit sticky, so following Sweeney's lubing recommendations will help you get past the rough edges while it's new.
Amazon product ASIN 1440208999
Amazon product ASIN 1440208999
The hornady eld match factory cycles and so does the S&B factory cycles thats all ive had factory wise and they cycle ok. But my reloads im abot max load on all powders and projectiles and still 2 out of 5 is a short stroke. So you think i just need to get ride of the gas black that came on it and go with a adjustable one. My first half build was a bear creek 65 upper complete and just built the lower that thing cycles everything i put in it no problem and a tack driver at that so thats what i shoot. But for the money i put into this aero i need to start getting it to function properly
Ive built countless 15s in every cal. And reload for all of them and reload for everything else as well i know sometimes i might have a little break in period and after that 1000s of reloads with out a failure just having trouble with this particular one. The only time ive ever had to use an adjustable block is when running subs on one of the blackouts
Thank u very much. Ive done many builds and reload everything but have never had this short stroking problem especially with max charges.
When you say short stroking. Does it eject the spent round? Or not pick up the next round in the mag?
Its not as bad with say a 140 or 147 eld m as it is with 123s and 130s but it should still be plenty of pressure to cycle everything i been putting in it. I was say i even have a couple little cheap builds like BCA and some others that eat everything but they are also known to be over gassed
I will try that out thank you very much. Alot of people are saying i need to throw an adjustable gas block on it witch ive done on some others but as is from aero it should already be getting all the gas it can get with the standard correct. It should be wide open now and adjustable is going to help me restrict the gas?
You still haven’t answered the question or explained what you mean by short stroking and what is actually happening. How can we know how to help if you can’t even communicate that to us.
And aero is cheap and too much gas is just as bad as too little and brand has nothing to do with it.
No suggestions will do you any good until you can communicate what’s actually happening.
And aero is cheap and too much gas is just as bad as too little and brand has nothing to do with it.
No suggestions will do you any good until you can communicate what’s actually happening.
I didnt aee where anyone asked. Short stroking. Its stove piping and if it dont stove pipe it will eject properly but the bolt dont go far enough back to pick up another round. When im using superformance powder at max charge its not as bad 3 or 4 out of 10 are a failure to eject properly or pick up the next round and its like that with all the other powders as well. Some Factory ammo runs good but only hornady eld match and the cheap S&B everything else is short stroking
Im also thinking lighter spring. The adjustable gas block i Normally only use those to restrict the gas to tune it in and how i want it to run with certian loads. As is now from the factory as a completed upper from aero it should be wide open and getting as much gas as it can ever get correct? I reall appreciate the in put that im getting from everyone. I need extra thought so i can start thinking outside the box
This is what people needed to know. What spring/buffer are you running? They need to be in balance with the amount of gas, and initial swag says your not getting enough gas for spring weight.
ETA: Might also want to clarify what length gas system, and what size gas port if you know/can pin it to find out. May help people be more helpful with suggestions.
I just now seen this reply. it does both. If it does eject the round properly it will not pick up the next round because the bolt is not going back far enough or it will stove pipe a spent case and Smash it. It will run 2 different factory loads ok the hornady eld match and S&B out of a 20 rnd. Box it may only happen twice but with my handloads its like 3 out of 10 will be a failure to eject properly and cycle the next round do to it short stroking. Im loading pretty hot and not really seeing the same amount of flattering in the primers as i do the bolt gun witch is great and the AR is great when it cycling properly. Im seeing different pressure signs with the same loads bettween the bolt and gas gun.
Is the standard aero cabine 308 buffer kit with a 22" complete 65 Cm from aero already build so it will be a rifle length gas system i would suppose and per areo i was told to use the aero carbine buffer 308 kit cause i wasn't sure what stock i was going to go with witch ended up being a PRS i dont know the size of the gas port i didnt build it aero did. Ive never had an issue with anything ive ever built just this that came aero. I agree im not getting enough gas that why im asking about the difference in loads for a gas gun and the bolt gun
Check that the gas system is lined up properly - gas block and port lined up, good lineup into the receiver/carrier, etc. You're restricting gas somewhere and it's not from the loading bench.
Man i have checked everything multiple times. Thats why im here. Ive done many builds have never had this issue. I wouldn't have come to yall unless ive tried and checked everything i could think of. The only thing i can think of is the carbine buffer kit from aero with the rifle length gas system but that what i was told to use per aero but i should still have enogh gas pressure and dwell to get that bolt far enough back to run properly. Its fde cerokoted. I know its far fetched but i can see some of it coming off on my CH u think that could be binding it up just enough to slow it down to much cause there is cerokote in the upper as well. Im just at a loss
Everything is lined up perfectly ive checked everything i could think of multiple times. Im at a loss thats why i came here
It seems that your rifle will function when fed what it likes; an indication is that the rifle cycles with some factory ammo. Keep in mind that gas operated rifles have to operate in a relatively narrower pressure range than bolt actions. If the powder is too slow, the bolt tries to open while pressure in the chamber is too high. The result is often bent rims and failure to eject and feed properly.
Superformance's burn rate is at the slow end of the listed powders for 6.5CM. Have your tried faster burning powders such as H4895, RE15, or Varget?
Can you post a picture of a fired case that was loaded with Superformance?
I have the superformance win 760 varget hybird V imr 4895 h4895 RL26and some others thats what i have for the 65 i dont having any brass on hand that hasnt already been resized
Imr 4350 and h4350 and every primer know to many im testing putting some loads together now to test some different primers. Ive ben using BR 2 and 210M just put some together with some 200s and was going to start a very low ladder using mag primers but not sure what powder to use
My suggestion is to work up a load with Varget or IMR4895.
I just worked up a load using varget with 3 different primers 200s br4 and 210m and did the same with the hybird 100V with the same primers i use these primers alot but have never used either one of these powders for the 6.5. Ill work up a load with imr 4895 but cant check them out till this weekend. Unless i just went to the local indoor range just as a function test
welcome , varget might work I have not had the chance so far to try it personally , but I know nothing about 4895 or what type of presures you would be creating , I have tried 4451 it worked but was slower than Imr 4350 not a bad shooting powder but nothing has touched rl 17 and hybrid 100 v yet out of the 9 powders that I have tried .
h4350 @ 41.7gr - 41.8gr ,h hybrid 100v @ 41.3gr , superformance (slow) , rl 16, 17 @ 41.3gr (my personal favorite) maybe more ,Imr 4350 @ 41.9gr , imr 4451 @ 41.5gr and 41.9 ,win 6.5 stabal @ 43.5gr , n555 @ 43.6gr , n550 maybe , accurate 4350 43.0 maybe others as well , most allowed use of 42.gr or under to achieve 2740's my preferred speed to 2880's what I call my high end fps in my gun I really have no need to push the bullet very fast as my range is only 600 yards , you would need to find and test and pick what you liked to shoot these are some of my favorites they might or might not work the same for you . Best of luck finding powders and loads you like and then finding enough of it to last you a while . and loads that worked really well with some powder in winter might need tweaking in summer or visa versa . Oh I only saw one video on you tube for the 4895 used with a 6.5 his shooting aside , everything else is for the 308 not sure if any of this will or won't help you in any way I hope it does somehow .
h4350 @ 41.7gr - 41.8gr ,h hybrid 100v @ 41.3gr , superformance (slow) , rl 16, 17 @ 41.3gr (my personal favorite) maybe more ,Imr 4350 @ 41.9gr , imr 4451 @ 41.5gr and 41.9 ,win 6.5 stabal @ 43.5gr , n555 @ 43.6gr , n550 maybe , accurate 4350 43.0 maybe others as well , most allowed use of 42.gr or under to achieve 2740's my preferred speed to 2880's what I call my high end fps in my gun I really have no need to push the bullet very fast as my range is only 600 yards , you would need to find and test and pick what you liked to shoot these are some of my favorites they might or might not work the same for you . Best of luck finding powders and loads you like and then finding enough of it to last you a while . and loads that worked really well with some powder in winter might need tweaking in summer or visa versa . Oh I only saw one video on you tube for the 4895 used with a 6.5 his shooting aside , everything else is for the 308 not sure if any of this will or won't help you in any way I hope it does somehow .
Thats what im working on. Have checked everything i can check with the gun. Maybe the powders im using for my bolt and other AR that is very well broken in.might be to slow to get this one to cycle properly just trying a faster powder or to see if that makes a difference and maybe break it in a little more the can go to my normal powders.
Have been getting alot of different ideas and and some contradictory ideas. To lite of a buffer system to heavy of a buffer system gas block and tub miss alignment need a adjustable gas block i appreciate everyones help and trying to help me think out side of the box to get this thing running. I know this is also contradictory as well cause of the problem i was having was short stroking. So by putting a heavier buffer in would slow the action down even more but i was thinking that the inertia of a heavier buffer could also have the opposite effect and work with the action instead of aginst it by retaining the the reward motion of the bolt and pressure and as of now 60 rnds. No failure of any sort. Still thinking it needs braking in and could use an adjustable block in the near future to help tune it in for different loads and or rnds. Maybe. But as of now shes running great with min. Recoil. Thanks everyone
I actually put a heavier buffer in it and runs great with less recoil not that the recoil was a factor to begin with. I was thinking the heavier buffer and inertia would help transfer the weight of the bcg and buffer far enough back to help it cycle and she runs like a champ at the moment. A little more time behind it and a little more breaking in and ill throw a adjustable block on it and be able to fine tune it alot better just trying to get it broke in and running and that was the quick easy answer for the time being. Thank u all for all the imput
No offense but to some aero may be a cheap and for others an aero is what they can afford. Id rather have what i could afford then nothing but i appreciate all the input. Actually stepped up the buffer weight and runs great now. Once i get some more rnds through and a little more broke in ill tune it in better with a adjustable block and so on. Thanks
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