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AR15.COM
10/22/2014 2:38:20 PM EDT
I would really like an AR-10 and like the idea of a piston one since I'll be running a can.  I've also always been a big fan of Ruger guns.  Can anyone tell me what kind of accuracy I could expect out of the Ruger SR762?
10/22/2014 3:44:14 PM EDT
[#1]
Most reports I have seen have been around 1 to 1.5 MOA with match ammo. Not necessarily a tack driver but still a pretty solid rifle IMO.
10/22/2014 6:06:07 PM EDT
[#2]
Slightly abbreviated from my July 2014 issue of American Rifleman:





At 100 yards:



Barnes VOR-TX 150gr, Velocity - 2668fps, Average group size - 1.18"

Hornady Steel Match 155gr, Velocity - 2435fps, Average group size - 1.15"

Norma Match 168gr, Velocity - 2459fps, Average group size - 1.66"



Average Extreme Spread - 1.33"
10/22/2014 7:48:56 PM EDT
[#3]
The whole "piston runs better than DI, with a can" thing is a myth.

The gas you're getting in your face/in the action is coming from back pressure in the chamber, not the gas system.

They all run dirty when suppressed.
10/22/2014 10:35:35 PM EDT
[#4]
Quote History
Quoted:
The whole "piston runs better than DI, with a can" thing is a myth.

The gas you're getting in your face/in the action is coming from back pressure in the chamber, not the gas system.

They all run dirty when suppressed.
View Quote


What about the capability of quickly tuning it for can vs unsuppressed?
http://www.youtube.com/watch?v=4miCIq-EWhk

Yes, I'm familiar with adjustable gas blocks.  I have a syrac and it's not the smoothest thing to adjust.
10/23/2014 7:17:34 AM EDT
[#5]
Quote History
Quoted:


What about the capability of quickly tuning it for can vs unsuppressed?
http://www.youtube.com/watch?v=4miCIq-EWhk

Yes, I'm familiar with adjustable gas blocks.  I have a syrac and it's not the smoothest thing to adjust.
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
The whole "piston runs better than DI, with a can" thing is a myth.

The gas you're getting in your face/in the action is coming from back pressure in the chamber, not the gas system.

They all run dirty when suppressed.


What about the capability of quickly tuning it for can vs unsuppressed?
http://www.youtube.com/watch?v=4miCIq-EWhk

Yes, I'm familiar with adjustable gas blocks.  I have a syrac and it's not the smoothest thing to adjust.


The Syrac is a fully adjustable gas block designed to let the shooter tune the gas and recoil. It wasn't designed to be a quick adjust gas block for suppressors like the Noveske Switchblock. You can get gas blocks that are made easy to asjust for supressor use, or you can just run a suppressor with the Syrac set right.
10/23/2014 11:14:47 AM EDT
[#6]
Thanks- I'll have to check out the switchblock
10/23/2014 12:49:47 PM EDT
[#7]
Most switch blocks only have two settings, suppressed and wide open.  Some might be available withe three settings, suppressed, wide open and off.  I like the adjustable better if running different loads.  But it depends on your purpose.
10/23/2014 11:33:56 PM EDT
[#8]
I've gotten 2 moa accuracy with plain PMC 147 FMJ. No complaints at all.

And, it cycles fine suppressed, AND with Gen 3 Pmags



Eta: a number
10/24/2014 9:37:27 AM EDT
[#9]
Quote History
Quoted:
I've gotten moa accuracy with plain PMC 147 FMJ. No complaints at all.
View Quote


I've shot 1/2 MOA groups with Wolf 55gr FMJ before.
10/24/2014 10:20:06 AM EDT
[#10]
Quote History
Quoted:


I've shot 1/2 MOA groups with Wolf 55gr FMJ before.
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
I've gotten moa accuracy with plain PMC 147 FMJ. No complaints at all.


I've shot 1/2 MOA groups with Wolf 55gr FMJ before.



Not sure if you're being sarcastic... Haven't had much coffee yet....

If it's what I think; by moa I certainly did not mean "sub" moa with PMC. After re-reading my post, I see I failed to put a number with it.
10/24/2014 10:33:25 AM EDT
[#11]
The number in front of the MOA can make a big difference. ;)

My post was sarcasm, with my point being any rifle can produce a MOA or better group with any ammo. What matters is what the rifle can do on a consistent basis. I have never seen any ball ammo capable of MOA or better accuracy. Although, that doesn't mean you can't get lucky.