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Posted: 2/17/2015 8:09:39 PM EDT
| What buffer weight (Carbine) is everyone running with a 14.5" barrel with a mid-length gas? |
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Quoted:
What buffer weight (Carbine) is everyone running with a 14.5" barrel with a mid-length gas? It depends on the gas port. In general, a standard buffer works in any of them, while the H buffer works in the majority, though some people start seeing trouble with weaker ammo or as the weapon gets dirty or doesn't have enough lube. Some guys are using a H2, which is cool, but gets a little more picky. |
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-what barrel, specifically?
-what ammunition? Even then, my buffer devining tools are only as good as your maintenance and lube habits. 
Just too many variables. Shoot with the heaviest buffer that you ammunition will allow to lock back on an empty mag, and cycle through to that point without a short stroke |
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A heavier buffer will be best to get the benefits of a soft shooting 14.5 middy, fast target aquisition etc. You may have to run better mil spec ammo with a really heavy buffer. Try different weights till you get a good combo. I run a heavy buffer in mine and it is pretty sweet. It is dependable too, with most ammo, shoots just about everything now. I had some issues with some factory reloads when it was newer so I stay away from those. |
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The best buffer is the heaviest one that still cycles the weapon reliably, regardless of gas system.
There are too many variables to simply say "Oh, midlength gas? Just use an H2." Either drop the coin on a handful of buffers and start testing or just get an H3 and swap out some of the weights if you need to go lighter. Don't forget to fire it while holding it as loosely as you can, off your shoulder, to insure that the bolt locks back after the last round. Quoted:
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I have never had a problem with Vltor A-5 buffer system. No matter the ammo. Makes for a soft shooter Can you perhaps specify Buffer weight & spring used as well as port size? For reference. The A5 system IS a specific buffer weight & spring. **Edited after realizing that it's the tech forum. |
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Quoted:
The best buffer is the heaviest one that still cycles the weapon reliably, regardless of gas system. There are too many variables to simply say "Oh, midlength gas? Just use an H2." Either drop the coin on a handful of buffers and start testing or just get an H3 and swap out some of the weights if you need to go lighter. Don't forget to fire it while holding it as loosely as you can, off your shoulder, to insure that the bolt locks back after the last round. The A5 system IS a specific buffer weight & spring. If you're the kind of tool that buys an A5 them swaps the spring for a dickco. rainbow colored spring that a unicorn jizzed on, then you have more money than sense. Enjoy your KNS pins & BAD lever while you're at it, and don't forget to use a crayon on your selector markings. Quoted:
The best buffer is the heaviest one that still cycles the weapon reliably, regardless of gas system. There are too many variables to simply say "Oh, midlength gas? Just use an H2." Either drop the coin on a handful of buffers and start testing or just get an H3 and swap out some of the weights if you need to go lighter. Don't forget to fire it while holding it as loosely as you can, off your shoulder, to insure that the bolt locks back after the last round. Quoted:
Quoted:
I have never had a problem with Vltor A-5 buffer system. No matter the ammo. Makes for a soft shooter Can you perhaps specify Buffer weight & spring used as well as port size? For reference. The A5 system IS a specific buffer weight & spring. If you're the kind of tool that buys an A5 them swaps the spring for a dickco. rainbow colored spring that a unicorn jizzed on, then you have more money than sense. Enjoy your KNS pins & BAD lever while you're at it, and don't forget to use a crayon on your selector markings. 
Obviously it is "Specific", what else would it be? Someone must think this is GD... If you don't know, keep your mouth shut. No one wants to hear your belligerent bantering against those asking a specific question to which you don't know the answer. To add to your post I would go so far as to recommend using a Chrono to see the impact each buffer has on projectile velocity of a given loaded round. |
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Quoted:
The best buffer is the heaviest one that still cycles the weapon reliably, regardless of gas system. There are too many variables to simply say "Oh, midlength gas? Just use an H2." Either drop the coin on a handful of buffers and start testing or just get an H3 and swap out some of the weights if you need to go lighter. Don't forget to fire it while holding it as loosely as you can, off your shoulder, to insure that the bolt locks back after the last round. The A5 system IS a specific buffer weight & spring. If you're the kind of tool that buys an A5 them swaps the spring for a dickco. rainbow colored spring that a unicorn jizzed on, then you have more money than sense. Enjoy your KNS pins & BAD lever while you're at it, and don't forget to use a crayon on your selector markings. Quoted:
The best buffer is the heaviest one that still cycles the weapon reliably, regardless of gas system. There are too many variables to simply say "Oh, midlength gas? Just use an H2." Either drop the coin on a handful of buffers and start testing or just get an H3 and swap out some of the weights if you need to go lighter. Don't forget to fire it while holding it as loosely as you can, off your shoulder, to insure that the bolt locks back after the last round. Quoted:
Quoted:
I have never had a problem with Vltor A-5 buffer system. No matter the ammo. Makes for a soft shooter Can you perhaps specify Buffer weight & spring used as well as port size? For reference. The A5 system IS a specific buffer weight & spring. If you're the kind of tool that buys an A5 them swaps the spring for a dickco. rainbow colored spring that a unicorn jizzed on, then you have more money than sense. Enjoy your KNS pins & BAD lever while you're at it, and don't forget to use a crayon on your selector markings. Fuck, I want one of those unicorn jizz springs. I bet that would cycle so smooth |
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Obviously it is "Specific", what else would it be? Someone must think this is GD... If you don't know, keep your mouth shut. No one wants to hear your belligerent bantering against those asking a specific question to which you don't know the answer. Whoops, you're absolutely correct, post edited. As for A5 specificity, there are additional weights offered, it's just that hardly anyone ever buys them. ETA: Buffer weight will affect the rate of fire, but not velocity as far as I'm aware. The only way to really tell what's going on would be some sort of pendulum setup or a full auto gun with a shot counter. Best bet is just to use the heaviest buffer you can that'll still lock the bolt back consistently under all circumstances (dirty, dry, poor grip). |
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Quoted:
Whoops, you're absolutely correct, post edited. As for A5 specificity, there are additional weights offered, it's just that hardly anyone ever buys them. ETA: Buffer weight will affect the rate of fire, but not velocity as far as I'm aware. The only way to really tell what's going on would be some sort of pendulum setup or a full auto gun with a shot counter. Best bet is just to use the heaviest buffer you can that'll still lock the bolt back consistently under all circumstances (dirty, dry, poor grip). Quoted:
Quoted:
Obviously it is "Specific", what else would it be? Someone must think this is GD... If you don't know, keep your mouth shut. No one wants to hear your belligerent bantering against those asking a specific question to which you don't know the answer. Whoops, you're absolutely correct, post edited. As for A5 specificity, there are additional weights offered, it's just that hardly anyone ever buys them. ETA: Buffer weight will affect the rate of fire, but not velocity as far as I'm aware. The only way to really tell what's going on would be some sort of pendulum setup or a full auto gun with a shot counter. Best bet is just to use the heaviest buffer you can that'll still lock the bolt back consistently under all circumstances (dirty, dry, poor grip). I have seen a few builds utilizing them. Maybe someone would have thrown the buffer on a scale & checked spring rate. I have found there are a lot of sharp cookies around here & I like to ride on their coat tails into knowledge & understanding. 
As far as the impact of buffer weight on velocity; I have done those tests & let's just say it does have an impact. Sometimes as you would think, other times, not. |
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Though the gas system(intermediate-length) in my SR15 is longer than Mid-Length, it runs perfectly with H3 buffer.
I now only shoot 5.56 spec ammo, and the H3 is the heaviest option for the rifle that is still reliable with multiple brands of ammo. Why not try H2 first and go from there? You can go up or down after you find out what your rifle likes. |
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Quoted:
I have seen a few builds utilizing them. Maybe someone would have thrown the buffer on a scale & checked spring rate. I have found there are a lot of sharp cookies around here & I like to ride on their coat tails into knowledge & understanding.
As far as the impact of buffer weight on velocity; I have done those tests & let's just say it does have an impact. Sometimes as you would think, other times, not. Quoted:
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Obviously it is "Specific", what else would it be? Someone must think this is GD... If you don't know, keep your mouth shut. No one wants to hear your belligerent bantering against those asking a specific question to which you don't know the answer. Whoops, you're absolutely correct, post edited. As for A5 specificity, there are additional weights offered, it's just that hardly anyone ever buys them. ETA: Buffer weight will affect the rate of fire, but not velocity as far as I'm aware. The only way to really tell what's going on would be some sort of pendulum setup or a full auto gun with a shot counter. Best bet is just to use the heaviest buffer you can that'll still lock the bolt back consistently under all circumstances (dirty, dry, poor grip). I have seen a few builds utilizing them. Maybe someone would have thrown the buffer on a scale & checked spring rate. I have found there are a lot of sharp cookies around here & I like to ride on their coat tails into knowledge & understanding.
As far as the impact of buffer weight on velocity; I have done those tests & let's just say it does have an impact. Sometimes as you would think, other times, not. I run the A5 and other people I know who run the A5 use all different weights of buffers for different weapons, same as people with carbine receiver extensions do. there are 5 different weights that vltor makes(form 3.8 to 6.8oz) and Heavy Buffers makes 5 different A5 buffers as well(4 to 10oz), and the spring used the A5 is a rifle length spring, so you can use all the aftermarket of various strength or OEM parts(Tubbs, JP, Sprinco, Wolff, Colt etc) Vltor - A5 buffers A5H0: 3.80oz A5H1: 4.56oz A5H2: 5.33oz A5H3: 6.08oz A5H4: 6.83oz Heavy Buffers- A5 buffers H - 4.0 ounces H2 - 4.5 ounces H3 - 5.5 ounces H4 - 6.5 ounces XH - 10.0 ounces And buffers have no effect on velocity, the round is out of the barrel before the buffer does anything. they do effect the velocity of the carrier but that is considered rate of fire. |
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Quoted:
I run the A5 and other people I know who run the A5 use all different weights of buffers for different weapons, I ordered the ADM tactical trinket that surfaced in that thread today. It is my last try before abandoning all hope, and ordering up a full set of this A5 stuff you talked me into. Not a cheap proposition to outfit several rifles
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Quoted:
I ordered the ADM tactical trinket that surfaced in that thread today. It is my last try before abandoning all hope, and ordering up a full set of this A5 stuff you talked me into. Not a cheap proposition to outfit several rifles
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Quoted:
I run the A5 and other people I know who run the A5 use all different weights of buffers for different weapons, I ordered the ADM tactical trinket that surfaced in that thread today. It is my last try before abandoning all hope, and ordering up a full set of this A5 stuff you talked me into. Not a cheap proposition to outfit several rifles
Ha! you can find them in the EE for around 35 to 40 for the extension. you can sell your carbine extensions for 20 to 30(depending on the manufacturer). same with switching over to A5 buffers, cost you about $20 to swap yours out. so around $50 max per AR if you have the patience, that's the way I did it. if you're jrs93accord this will still be a sizable investment, but for those of us that only keep 3 to 5 ARs at a time it isn't that big of a deal. I think it's well worth it. Got a govnah on the way for my 10" so back to the drawing boards with buffer weights and spring tension to get it tuned. |
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Quoted:
I run the A5 and other people I know who run the A5 use all different weights of buffers for different weapons, same as people with carbine receiver extensions do. there are 5 different weights that vltor makes(form 3.8 to 6.8oz) and Heavy Buffers makes 5 different A5 buffers as well(4 to 10oz), and the spring used the A5 is a rifle length spring, so you can use all the aftermarket of various strength or OEM parts(Tubbs, JP, Sprinco, Wolff, Colt etc) Vltor - A5 buffers A5H0: 3.80oz A5H1: 4.56oz A5H2: 5.33oz A5H3: 6.08oz A5H4: 6.83oz Heavy Buffers- A5 buffers H - 4.0 ounces H2 - 4.5 ounces H3 - 5.5 ounces H4 - 6.5 ounces XH - 10.0 ounces And buffers have no effect on velocity, the round is out of the barrel before the buffer does anything. they do effect the velocity of the carrier but that is considered rate of fire. Quoted:
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Obviously it is "Specific", what else would it be? Someone must think this is GD... If you don't know, keep your mouth shut. No one wants to hear your belligerent bantering against those asking a specific question to which you don't know the answer. Whoops, you're absolutely correct, post edited. As for A5 specificity, there are additional weights offered, it's just that hardly anyone ever buys them. ETA: Buffer weight will affect the rate of fire, but not velocity as far as I'm aware. The only way to really tell what's going on would be some sort of pendulum setup or a full auto gun with a shot counter. Best bet is just to use the heaviest buffer you can that'll still lock the bolt back consistently under all circumstances (dirty, dry, poor grip). I have seen a few builds utilizing them. Maybe someone would have thrown the buffer on a scale & checked spring rate. I have found there are a lot of sharp cookies around here & I like to ride on their coat tails into knowledge & understanding.
As far as the impact of buffer weight on velocity; I have done those tests & let's just say it does have an impact. Sometimes as you would think, other times, not. I run the A5 and other people I know who run the A5 use all different weights of buffers for different weapons, same as people with carbine receiver extensions do. there are 5 different weights that vltor makes(form 3.8 to 6.8oz) and Heavy Buffers makes 5 different A5 buffers as well(4 to 10oz), and the spring used the A5 is a rifle length spring, so you can use all the aftermarket of various strength or OEM parts(Tubbs, JP, Sprinco, Wolff, Colt etc) Vltor - A5 buffers A5H0: 3.80oz A5H1: 4.56oz A5H2: 5.33oz A5H3: 6.08oz A5H4: 6.83oz Heavy Buffers- A5 buffers H - 4.0 ounces H2 - 4.5 ounces H3 - 5.5 ounces H4 - 6.5 ounces XH - 10.0 ounces And buffers have no effect on velocity, the round is out of the barrel before the buffer does anything. they do effect the velocity of the carrier but that is considered rate of fire. Thanks for the input on buffer weight. I agree it shouldn't make any difference to velocity... 
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