[Piperman]

I honestly don't see how a break in period is absurd for a piece of machinery made to tight tolerances. Your car requires a break in for maximum performance as well as long life. This is due to machining characteristics, metal components need to wear in, through a couple of heat cycles.

I never expect any firearm to do any more than fire and maybe hit the target, fresh out of the box, never have, if it fires every round and hits the target every time, I wonder if it was made to tight specs or maybe it isn't new, not at least until broken in.

Steve

 

[herbertwest]

As I mentioned, brand new out of the box with all the toys....also, as mentioned, no other rifle/pistol I have owned required a break in...this is my first .308 and my first sig rifle, so unaware break-in was required.... Will do follow up post and range report next week. Hopefully it was 'my bad' that gun was not lubed properly and just 'dry'.

 

[Piperman]

I understand. I will bet it is just that it was dry and needed a clean and lube to get her ready. I look forward to hearing more about it, as I too am thinking of getting one.

Steve

 

[mmaz]

Finally got to go to the range. Shot Federal Premium 7.62x51 175 grain, hollow point, boat tail matchking and American Eagle .308 150 grain fmj bt. Shot about 80 rounds without a single issue. Used two different p-mags and also precleaned the gun after getting it out of the box. I generously lubed the areas the owners manual suggested using remington oil. Very pleased with the performance.

 

[ridnruff82]

sig 716 ammo problem

I was also having problems with my Sig 716. When I purchased it I took it home, field striped it and lubed it. Took it to the range yesterday and put 5 rounds through it with no problem. Then it wasn't wanting to cycle it, eject it, double feed, and when the magazine was empty the bolt didnt lock back as well. I bought American Eagle .308 160gr. Does anyone have an idea on what exact bullet I should use for the break in period?

 

[Colorado1876]

I was having the same problem. My 716 prefers the 168gr 7.62x51 and 175gr 7.62x51. It didn't work well at all with .308 150gr. It took three cleanings and about 140 rounds before things started to smooth out and the rifle began functioning better.

 

[FrankHKP7]

I wish I had some words of wisdom for you guys other than CLEAN THE GUN and make sure your regulator is set to the #2 position!

I brought my 716 home, pulled it apart and immediately cleaned it (and I mean scrubbed everything) with butch's bore shine solvent. Then I wiped everything down clean. After that I smeared everything with frog lube and wiped it down again. Then I hit the moving parts with a little extra, making sure I put a heavy coat on the bolt washers then slid it into the carrier.

Took it to the range...

Dumped 20 rounds of old 180gr cor-lokt I had laying around and 120 rounds of 168gr Ultramax (egads!) through it and the gun ran fine. I proceeded to clean it again, this time only using the frog lube.

Loaded up some Win Brass w/ 43.5 gr of Varget and Win Primers and Sierra 168gr HPBT's and let 100 of them fly.

I've had no issues with either remanufactured rounds, or rounds I made myself.

Just my observation about my rifle. Your mileage may vary.

-Frank

 

[mmaz]

ridnruff82,

I agrea with colorado1876, throw some match 7.62X51 in there and see how she does for a mag or two. When you did a function test with an empty pmag did the action lock open when you manually ran the handle?

frankhkp7,
was the ammo 7.62 or .308?
"180gr cor-lokt I had laying around and 120 rounds of 168gr Ultramax"

 

[FrankHKP7]

ridnruff82,


frankhkp7,
was the ammo 7.62 or .308?
"180gr cor-lokt I had laying around and 120 rounds of 168gr Ultramax"

The Ultramax was 99% reloaded from once fired Lake City 7.62 Cases
My handloads are made up of 308 Winchester Brass, bullet diameter was .308"

 

[mmaz]

The Ultramax was 99% reloaded from once fired Lake City 7.62 Cases
My handloads are made up of 308 Winchester Brass, bullet diameter was .308"

Great to hear that it is cycling and shooting reloads. Going to be reloading some of my once fired stuff soon and hoping I have as good of luck.

 

[FrankHKP7]

Great to hear that it is cycling and shooting reloads. Going to be reloading some of my once fired stuff soon and hoping I have as good of luck.

I'm satisfied with it's performance thus far. I think my next 100 rounds are going to be in the lower weight range, 125 through 155 and see if they run through the gun. Also might go with some IMR 4895 or maybe Reloader 15. I'll let you know how they run.

 

[KiowaKid]

Well I took the 716 out to the range to run some 150 grain ammo I bought at a Gun Show, from a place called Ammo Kan, the rifle functioned flawless couldn't ask for a better shooting rifle, next I will try some russian stuff but no hurry, this rifle has not given me one once of trouble.

KK

 

[Cnetter]

ammo exp

in my SIG716 i've shot:

Wolf brown bear 145gr. worked fine for me. i've put about 500 rounds thru it. i like the low price! I hate the smell. MUST CLEAN CHAMBER after use. gunk gets all over bolt/extractor too. Black soot all over the valve and piston.

PPU PRVI Partizon white box 145gr FMJ. this is my favorite. good price and performance. 400rds

Federal american eagle 150gr FMJ. works great, a bit pricey shot 200rds. This was the first ammo i shot from the 716. some FTF and double feeds in the first 60rds. but i think it is because the gun was new. after i cleaned and greased the gun, no more problems

Winchester superX 180gr. too expensive! about $1.25 a round from Walmart. 60rds.

i got 2 cans of 250rd linked 762x51 1986 from portugal for $99 each. works great other than personally removing each round from the links. If i see surplus ammo like this i wouldn't hesitate to order them.

 

[SJCR59]

Any one know if the blue box PPU PRVI Partizon is any better than the white or is it just different packaging? Wish i could find some surplus for cheap, , i had some Port.battle packs i bought from a local gun show and the majority of it was very corroded(2/3 of it)never saw the vendor again, but it was 65 $$ a pack and bought 2, so i ate about 85 dollars worth of junk ammo, pulled the bullets and scraped the brass. It seems the consensus is that the linked seems to be the way to go, if you can find any for a decent price or any at all. If any one here knows of a vendor selling any military surplus thats of a decent quality, drop a line( I hope you can do that with out getting in some type of hot water for mentioning a vendor here) thanks!

 

[qshipsmn]

716 & 7.62x51 Mk 319 Mod 0 AMMO

Has anyone tried the Federal MK319 130 Grain OTM Open Tip Match Ammo T762TNB1 in their rifle? I'm wondering how that ammo will perform in the SIg.

Any thoughts on this round? It is supposed to be optimized for the short ( 16") barrel 7.62 rifles.

Thanks.

 

[popawoody]

.308 is OFFICIALLY safe in a Sig 716

I realize this is a pretty old thread at this point, but it contains more FUD than need be. There is a very clear, unambiguous answer to the question "Can I safely shoot .308 Winchester ammunition in my Sig Sauer 716 chambered in 7.62 X 51?" The answer is YES. On page 21 of the owner's manual, you'll find this statement:

"The rifle is chambered in 7.62x51mm NATO and is compatible with .308 Winchester ammunition."

Don't take my word for it though. Take a look for yourself: http://sigsauer.com/upFiles/CmsContent/documents/SIG716_MiniManual_1800058REV01_LR.pdf

 

[Sherlock]

Federal American Eagle 150 grain FMJ in 308. Runs like rain after some initial cycling issues. It's a BANG BANG love fest whenever the 716 is yanked out of its case these days.

 

[Quest4PureLogic]

If Sig themselves say it ok, then there's a good change you'll be fine. But here's a good video explaining the difference between .308 and 7.62.

Which may apply to other 7.62 chambered rifles.

 

[powermad]

Not sure why necroposty is being practiced here.

And for Pete's sake, if people are going to spout chamber pressures on video between the 7.62x51 NATO and a commercial .308 would they at least take the time to understand what CUP pressure and transducer pressure sensors are.
They are nowhere close to the same type of measurement and neither can be converted to the other.

The .308 does have a bit more chamber pressure when both are tested with a pressure transducer.
It was published data in the 1985 Lyman reloading manual and tested by HP labs.
IIRC 7.62 had 58,000 psi and .308 had 62,000. Not enough to worry about in a properly headspaced gun.

If you happen to own a real battle rifle that is actually chambered for 7.62x51 NATO (HK,FAL) then you had better drop a .308 no go in it before using commercial ammo.
The minimum 7.62 is more than a .308 no go and a .308 field gauge is about halfway between the 7.62 min and max range.

I headspaced FAL's at 1.630" and they ate everything fine.
I just turned the gas down a bit with .308 and all was well.

As far as modern produced guns for civilians, this is a non issue.

Not even going into reloading a 7.62x51 case.
If you are punching out rounds you should already know what you are doing anyway.

 

[eagle1258]

7.62x39 or 7.62x51 ...are they interchangeable?

I'm looking at buying my first AR and considering a 7.62 variant. Can the 39mm and 51mm cartridges be used interchangeably in a 7.62 rifle?