Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
4/26/2014 8:09:01 AM EDT
Yes, I know PTAC has been beaten to death here...and I looked around but couldn't find anything definitive answering my question.

I see the PTAC 1:7 uppers are "expected to group within the milspec", I presume <4 MOA.

Has anybody thrown a scope on a PTAC 1:7 upper and tested their 100yd accuracy with 68-77gr bullets, either factory ammo or reloads?
4/27/2014 4:48:20 AM EDT
[#1]
Quoted:
Yes, I know PTAC has been beaten to death here...and I looked around but couldn't find anything definitive answering my question.

I see the PTAC 1:7 uppers are "expected to group within the milspec", I presume <4 MOA.

Has anybody thrown a scope on a PTAC 1:7 upper and tested their 100yd accuracy with 68-77gr bullets, either factory ammo or reloads?
View Quote


i believe someone was giong to do it.. i just dont know if someone did.
4/30/2014 3:14:19 PM EDT
[#2]
The one I built shot 1 inch at 100 with the 77gr Nosler Custom Competitions over Varget.

http://www.ar15.com/forums/t_2_301/247366_Barrel_Info___.html&page=4
4/30/2014 6:38:50 PM EDT
[#3]
I got around 3" group at 100 yrds with 55 grn bulk ammo with mine. No noticeable difference with 62 grn.
5/1/2014 6:58:04 AM EDT
[#4]
pretty decent reports guys.. thanks
5/1/2014 3:54:31 PM EDT
[#5]
I did with a vortex strikefire with a 2 x zoom but I wouldnt trust my results since it was my first time shooting but I think i would say 5-6 MOA for a first time shooter.
5/1/2014 6:39:40 PM EDT
[#6]
Quote History
Quoted:
I did with a vortex strikefire with a 2 x zoom but I wouldnt trust my results since it was my first time shooting but I think i would say 5-6 MOA for a first time shooter.
View Quote

Send it back. They are advertised to meet Mil-Spec!
5/1/2014 6:44:53 PM EDT
[#7]
What is the mil-spec?
5/1/2014 7:49:41 PM EDT
[#8]
Quote History
Quoted:

Send it back. They are advertised to meet Mil-Spec!
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
I did with a vortex strikefire with a 2 x zoom but I wouldnt trust my results since it was my first time shooting but I think i would say 5-6 MOA for a first time shooter.

Send it back. They are advertised to meet Mil-Spec!

Key words.... first time shooter. No offense but he may not be able to shoot with a match rifle.

He may not even have it zeroed properly.
5/1/2014 7:50:23 PM EDT
[#9]
Quote History
Quoted:
What is the mil-spec?
View Quote

I believe 5 is the maximum acceptable.
5/2/2014 3:32:06 AM EDT
[#10]
delete
5/2/2014 5:33:56 AM EDT
[#11]
To Tvdang7:  
First time beginner shooter doing 5 MOA.  I can see that. Sounds like a marksmanship fundamentals issue.  Not a big deal.  Clean, research marksmanship fundamentals, dry-fire practice, and try it again. Also, check and make sure your  sight is mounted tightly and didn't shake loose.    I am not sure I'd blame the rifle just yet.
5/2/2014 5:52:30 AM EDT
[#12]
I had one of the bad ones that was unshootable.  I've shot the replacement for a few hundred rounds with zero malfunctions and good accuracy.  I haven't scoped it and shot for tiny groups with carefully-made handloads, but I have properly zeroed it and shot it.  It shoots with practical accuracy that you would expect from any AR.  In my experience, as a general rule, the difference between a lower-cost AR, and a quality rackgrade gun like a Colt, is not accuracy, but in reliability and reduced chance of breakage and failure.

My replacement PTAC is accurate and runs fine, but I wouldn't use it on duty or on deployment.
5/2/2014 4:40:50 PM EDT
[#13]
Quote History
Quoted:
To Tvdang7:  
First time beginner shooter doing 5 MOA.  I can see that. Sounds like a marksmanship fundamentals issue.  Not a big deal.  Clean, research marksmanship fundamentals, dry-fire practice, and try it again. Also, check and make sure your  sight is mounted tightly and didn't shake loose.    I am not sure I'd blame the rifle just yet.
View Quote



Damnit Alex.


Stop Posting Sense!!

NO one got time for that.