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Sig 556
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Re: Sig 556
They have been plauged with many QC problems since they were introduced (especially in the JS 25K to 35K serial # range) and I still see complaints. more so than any other 5.56 rifles. If you get a good one they can be fine rifles. Many compalin about being front heavy but mine with the Swiss 551 hand guards and a Magpul CTR stock is a delight to handle when compared to a SR 558 and has given me no trouble except for it's inability to shoot decent groups othet than with 52 grain SMK's (!.25-1.5" groups) despite the 1:7 twist.
They have been plauged with many QC problems since they were introduced (especially in the JS 25K to 35K serial # range) and I still see complaints. more so than any other 5.56 rifles. If you get a good one they can be fine rifles. Many compalin about being front heavy but mine with the Swiss 551 hand guards and a Magpul CTR stock is a delight to handle when compared to a SR 558 and has given me no trouble except for it's inability to shoot decent groups othet than with 52 grain SMK's (!.25-1.5" groups) despite the 1:7 twist.
Re: Sig 556
I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again...
I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again...
Re: Sig 556
I have two 556 SWATs, two 556 pistols, and a 556 DMR. I'm very happy with them, especially the pistols. The pistols are absolutely my go to weapons. If you've gotten used to a piston system, for me it's hard to change to DGI. The 556s ARE front heavy and only 2.0 - 3.0 MOA rifles in my hands, but they are reliable and tough as nails.
http://www.snipershide.com/forum/ubbthre...475#Post2044475
The other issue many have is the lack of aftermarket parts/hardware, which is pretty lean compared to what's available for ARs. To each their own, I'm happy with what I have.
I have two 556 SWATs, two 556 pistols, and a 556 DMR. I'm very happy with them, especially the pistols. The pistols are absolutely my go to weapons. If you've gotten used to a piston system, for me it's hard to change to DGI. The 556s ARE front heavy and only 2.0 - 3.0 MOA rifles in my hands, but they are reliable and tough as nails.
http://www.snipershide.com/forum/ubbthre...475#Post2044475
The other issue many have is the lack of aftermarket parts/hardware, which is pretty lean compared to what's available for ARs. To each their own, I'm happy with what I have.
Re: Sig 556
I had a 556 and recently sold it. However, NOT because it was not a great rifle. I needed the $$ for a different project.
As others have said, the original handguards are not only REALLY heavy but they're ugly as hell IMHO. I swapped them out with the Swiss 551 handguards and its a completely different rifle and the balance is perfect. Mine was extremely reliable with all but Wolf BB. It shot the Wolf polymer MC stuff just fine though.
My only complaint was accuracy - it wasn't gross and very acceptable for a combat carbine. But my ARs could consistantly outshoot it with the same ammo.
I really liked mine and still have a bit of sellers remorse for getting rid of it.
I had a 556 and recently sold it. However, NOT because it was not a great rifle. I needed the $$ for a different project.
As others have said, the original handguards are not only REALLY heavy but they're ugly as hell IMHO. I swapped them out with the Swiss 551 handguards and its a completely different rifle and the balance is perfect. Mine was extremely reliable with all but Wolf BB. It shot the Wolf polymer MC stuff just fine though.
My only complaint was accuracy - it wasn't gross and very acceptable for a combat carbine. But my ARs could consistantly outshoot it with the same ammo.
I really liked mine and still have a bit of sellers remorse for getting rid of it.
Re: Sig 556
I have one of the first 300 Sig 556 built and it has ran flawlessly since I got it, it is such a soft shooter that it is the only rifle I bring to a 3 gun match as follow up are super fast and i don't have to worry about reliability, just the sights on target. I will never sell it but i also have 11 AR15 that a enjoy the hell out of. The sig is not a benchrest accurate rifle but for what i use it for, it is perfect especially since i workout so the weight is not a problem
I have one of the first 300 Sig 556 built and it has ran flawlessly since I got it, it is such a soft shooter that it is the only rifle I bring to a 3 gun match as follow up are super fast and i don't have to worry about reliability, just the sights on target. I will never sell it but i also have 11 AR15 that a enjoy the hell out of. The sig is not a benchrest accurate rifle but for what i use it for, it is perfect especially since i workout so the weight is not a problem
Re: Sig 556
I've since acquired the LWRC M6A1 and M6A3, the A3 ave MOA to 1.5", the A1 is simular to the Sig556 in accuracy but it is so much lighter!!!
I've since acquired the LWRC M6A1 and M6A3, the A3 ave MOA to 1.5", the A1 is simular to the Sig556 in accuracy but it is so much lighter!!!
Re: Sig 556
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bongos</div><div class="ubbcode-body">I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again... </div></div>
+1 did the same and had the same experience. The barrel would walk shots as it heated up and was about 2-3 MOA overall. Can you upgrade a Sig barrel? Not that I know of. That issue alone is a show stopper. Get an AR and be happy with one of the finest rifles on earth.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bongos</div><div class="ubbcode-body">I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again... </div></div>
+1 did the same and had the same experience. The barrel would walk shots as it heated up and was about 2-3 MOA overall. Can you upgrade a Sig barrel? Not that I know of. That issue alone is a show stopper. Get an AR and be happy with one of the finest rifles on earth.
Re: Sig 556
Bought a NIB SIG556 SWAT...and, like everyone else said, could not get it to shoot under 3" w/match ammo and Hi end optics. It also beat all my match cases to a pulp..ejected rounds had large crease in side, dented the mouth half shut, and ripped the case head up. Match brass flew 25' and was not worth picking up.
It also beats up the finish on the rear of ejection port badly.
Sold it and went back to AR platform...and 1" MOA guns.
Bought a NIB SIG556 SWAT...and, like everyone else said, could not get it to shoot under 3" w/match ammo and Hi end optics. It also beat all my match cases to a pulp..ejected rounds had large crease in side, dented the mouth half shut, and ripped the case head up. Match brass flew 25' and was not worth picking up.
It also beats up the finish on the rear of ejection port badly.
Sold it and went back to AR platform...and 1" MOA guns.
Re: Sig 556
Ran some rounds through my Sig 556 #2 this afternoon. Haven't finished crunching numbers yet, but it looks a little better than #1 was (1.5 -2.0 MOA vs 2.0-3.0 MOA for #1). Still not what I was hoping for, but it is what it is.
BTW BigBore: ALL sig 556s throw brass 25-30 ft...it's for taking out bad guys that are trying to sneak up from the side (LOL).
Ran some rounds through my Sig 556 #2 this afternoon. Haven't finished crunching numbers yet, but it looks a little better than #1 was (1.5 -2.0 MOA vs 2.0-3.0 MOA for #1). Still not what I was hoping for, but it is what it is.
BTW BigBore: ALL sig 556s throw brass 25-30 ft...it's for taking out bad guys that are trying to sneak up from the side (LOL).
Re: Sig 556
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Scooter-PIE</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bongos</div><div class="ubbcode-body">I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again... </div></div>
+1 did the same and had the same experience. The barrel would walk shots as it heated up and was about 2-3 MOA overall. Can you upgrade a Sig barrel? Not that I know of. That issue alone is a show stopper. Get an AR and be happy with one of the finest rifles on earth. </div></div>
They can be upgraded but it's not an at home build, I converted 1 to 6.8 Saturday.
Not sure if the barrels are the issue or if it is the piston system.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Scooter-PIE</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bongos</div><div class="ubbcode-body">I had two and a friend had one for comparison, we took all three out to shoot, the problem is the the pencil 1:7 twist barrel with a AK style, long stroke piston system. We tested with known 1/2 MOA ammo in 52, 55, 62, 69, 75, & 77 grn bullets. As expected from 52 thru 69, were 5"-6" 5rd groups @100 yards, the 69 thru 77 did better.. 2.75"-3". Prior to the release, Sig advertise their Sig556 would avg 1.5", All three guns did about the same, one had a Sanson Rail, one had fishgill, and one had Sig551 handguard. I called Sig and they Bluntly said it's within Spec 3"!!! That is tough for a $1700 rifle... The other funny thing is, depending where you hold on to the handguard, effects your groups... Long story short, i dump my two Sig556 and will never buy another Sig Rifle again... </div></div>
+1 did the same and had the same experience. The barrel would walk shots as it heated up and was about 2-3 MOA overall. Can you upgrade a Sig barrel? Not that I know of. That issue alone is a show stopper. Get an AR and be happy with one of the finest rifles on earth. </div></div>
They can be upgraded but it's not an at home build, I converted 1 to 6.8 Saturday.
Not sure if the barrels are the issue or if it is the piston system.
Re: Sig 556
As said before mine is acceptable with 52 grain SMK's only. I would never buy another SIG rifle.
As said before mine is acceptable with 52 grain SMK's only. I would never buy another SIG rifle.
Re: Sig 556
I can't see how you can improve the barrel, the way LWRC improve their accuracy is to relace the M4 style barrels with a heavy barrel, the Sig556 as heavy as it is, they would have to open up the gas portion to add a heavy barrel.
I can't see how you can improve the barrel, the way LWRC improve their accuracy is to relace the M4 style barrels with a heavy barrel, the Sig556 as heavy as it is, they would have to open up the gas portion to add a heavy barrel.
Re: Sig 556
A bit better than AK accuracy,clean and reliable in .223 caliber.
Built like a tank. It's a combat rifle and not a precision rifle.
Mine does 2"~3" groups. I still have a match AR service rifle but the Sig it the perfect platform for mounting about anything you can dream up and needs minimal cleaning to keep running.
A bit better than AK accuracy,clean and reliable in .223 caliber.
Built like a tank. It's a combat rifle and not a precision rifle.
Mine does 2"~3" groups. I still have a match AR service rifle but the Sig it the perfect platform for mounting about anything you can dream up and needs minimal cleaning to keep running.
Re: Sig 556
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 007</div><div class="ubbcode-body">Why no Sig 556's in the forum? Is there a problem with them? </div></div>
Quite a few members on this site have aquired a sort of prejudice against these, due to their <span style="text-decoration: underline">standard</span> accuracy or not able to be at par with AR platforms. For these individuals accuracy is everything and everything else is just secondary.
As already mentioned, this rifle is prone to be front heavy and its accuracy is not the best. You will be limited with upgrades on this rifle, unless you get your hands on an older model which has some compatible parts with the AR platforms. Replacement parts are also not as abundant and commonly available as on other rifles.
My personal experience, I will not be able to take someone's eye out @ 100yds if I wanted to with one of these but I sure will manage to strike his silhouette 200yds to 300yds. This rifle's forte is in the ability to chumb down <span style="text-decoration: underline">any</span> ammunition that you are able to throw at it and at the same time, able to maintain its functionality do to it simple piston design. I don't think this rifle is built like a tank but it sure does have the ability to perform in harsh conditions with little care.
All rifle platforms have pros and cons. Some more than others but at the end, it really boils down to a matter of preference and which one will work best for you as a tool.
BTW... Welcome to the Hide
Max
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 007</div><div class="ubbcode-body">Why no Sig 556's in the forum? Is there a problem with them? </div></div>
Quite a few members on this site have aquired a sort of prejudice against these, due to their <span style="text-decoration: underline">standard</span> accuracy or not able to be at par with AR platforms. For these individuals accuracy is everything and everything else is just secondary.
As already mentioned, this rifle is prone to be front heavy and its accuracy is not the best. You will be limited with upgrades on this rifle, unless you get your hands on an older model which has some compatible parts with the AR platforms. Replacement parts are also not as abundant and commonly available as on other rifles.
My personal experience, I will not be able to take someone's eye out @ 100yds if I wanted to with one of these but I sure will manage to strike his silhouette 200yds to 300yds. This rifle's forte is in the ability to chumb down <span style="text-decoration: underline">any</span> ammunition that you are able to throw at it and at the same time, able to maintain its functionality do to it simple piston design. I don't think this rifle is built like a tank but it sure does have the ability to perform in harsh conditions with little care.
All rifle platforms have pros and cons. Some more than others but at the end, it really boils down to a matter of preference and which one will work best for you as a tool.
BTW... Welcome to the Hide
Max
