AR Sponsor
Posted: 12/10/2014 11:34:01 AM EDT
| Is there any negatives with going with these middies? |
|
Quoted:
nope! my main rifle is a 16" middy on a fixed rifle stock lower. ive put abou 1000 rounds through it (including wolf and tulammo), and have never had a single jam Quoted:
Quoted:
Is there any negatives with going with these middies? nope! my main rifle is a 16" middy on a fixed rifle stock lower. ive put abou 1000 rounds through it (including wolf and tulammo), and have never had a single jam Same here. Middy HBAR Del-Ton with no issues. Primarily shooting WPA (Wolf). And I definitely notice it is a softer shooter than my carbine-length. YMMV |
It's a matter of pressure buildup after passing the gas port to properly cycle the bolt. With the 2 barrel manufacturers you mentioned, I would not be too worried. I know midlengths are popular in 14.5 inch barrels and larger. I wouldn't want a midlength 11.5, though.  (not sure if they even make them...)
I have a 16 inch BCM midlength in one of my rifles, and it shoots about anything reliably. There was a point, within the first 200 rounds with .223 ammo, where the bolt catch didn't engage, but it worked itself out. I assume it just needed a little "break-in," possibly due to tight parts or something. They're smooth shooters! Have fun! |
|
In some 14.5 inch middies you have have issues, FTE and FTF when using lower powered ammo. This is because the dwell timing is not as long as it is on a 14.5 inch carbine system or a 16inch mid length system.
That said LOTS of 14.5 middies run great. This is a great read... http://www.03designgroup.com/technotes/carbine-vs-mid-length-gas-system |
|
Quoted:
In some 14.5 inch middies you have have issues, FTE and FTF when using lower powered ammo. This is because the dwell timing is not as long as it is on a 14.5 inch carbine system or a 16inch mid length system. That said LOTS of 14.5 middies run great. This is a great read... http://www.03designgroup.com/technotes/carbine-vs-mid-length-gas-system While what you say is true it's only half of the equation. The other half being proper gas port size. A quality barrel will take both into account. |
|
Quoted:
What is the weight due too? Quoted:
Quoted:
Mid length gas system AR's are gtg. You just have to compensate for the added front end weight. What is the weight due too? With a FSB they're noticeably more nose heavy due to the FSB being 2" further out toward the muzzle. |
|
Serious question (but then again, everything on the internet is serious business!)
It's been a while since I've looked at barrels. Before, it seemed like every 14.5" barrel had a carbine gas system and the 16" barrels had either a carbine or mid-length gas system Now, I see some 14.5" barrels with a mid-length gas system. What's the thought / benefit behind that? I understand the mid-length on a 16", but the shorter dwell time of a mid-length on a 14.5" doesn't seem particularly positive to me. What am I missing? Thanks. |
|
Quoted:
With a FSB they're noticeably more nose heavy due to the FSB being 2" further out toward the muzzle. Quoted:
Quoted:
Quoted:
Mid length gas system AR's are gtg. You just have to compensate for the added front end weight. What is the weight due too? With a FSB they're noticeably more nose heavy due to the FSB being 2" further out toward the muzzle. That to me seems to be a minor difference, not something you would notice. I don't think weight is any kind of issue with middy gas. Granted, the hand guard is longer so it also would add some weight but it just doesn't seem like both factors together would add up to increased front end weight to the point that it would bother you. Given the same barrel, FSB and type of hand guard, I can't see the balance point of the upper changing more than about 1". |
|
Quoted: Serious question (but then again, everything on the internet is serious business!) It's been a while since I've looked at barrels. Before, it seemed like every 14.5" barrel had a carbine gas system and the 16" barrels had either a carbine or mid-length gas system Now, I see some 14.5" barrels with a mid-length gas system. What's the thought / benefit behind that? I understand the mid-length on a 16", but the shorter dwell time of a mid-length on a 14.5" doesn't seem particularly positive to me. What am I missing? Thanks. |
|
Quoted: Weak ammo is absolutely not an issue with a mid-length gas gun. You MAY have cycling issues if you are running a 14.5" mid-length with an H3 buffer and some unnecessary overpowered action spring. Quoted: Quoted: Not really no unless you shoot real weak ammmo Weak ammo is absolutely not an issue with a mid-length gas gun. You MAY have cycling issues if you are running a 14.5" mid-length with an H3 buffer and some unnecessary overpowered action spring. |
|
Quoted:
It's a matter of pressure buildup after passing the gas port to properly cycle the bolt. With the 2 barrel manufacturers you mentioned, I would not be too worried. I know midlengths are popular in 14.5 inch barrels and larger. I wouldn't want a midlength 11.5, though. (not sure if they even make them...)
I have a 16 inch BCM midlength in one of my rifles, and it shoots about anything reliably. There was a point, within the first 200 rounds with .223 ammo, where the bolt catch didn't engage, but it worked itself out. I assume it just needed a little "break-in," possibly due to tight parts or something. They're smooth shooters! Have fun! How do you feel about 12.5?? 
|
AR Sponsor