HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: RichardZ
New Today: 0
New Yesterday: 0
Overall: 13126

People Online:
Members: 0
Visitors: 138
BOT: 0
Total: 138
Who Is Where:
 Visitors:
01: Forums
02: Your Account
03: Forums
04: Forums
05: Forums
06: Your Account
07: Home
08: Home
09: Forums
10: Forums
11: Forums
12: Your Account
13: Forums
14: Forums
15: Home
16: Forums
17: Photo Albums
18: Forums
19: Your Account
20: Forums
21: Home
22: Home
23: Home
24: Photo Albums
25: Home
26: Forums
27: Forums
28: News
29: Forums
30: Forums
31: Forums
32: Home
33: Forums
34: Forums
35: Forums
36: Home
37: Photo Albums
38: Forums
39: Forums
40: Forums
41: Forums
42: Home
43: Home
44: Forums
45: Home
46: Forums
47: Forums
48: Forums
49: Your Account
50: Forums
51: Forums
52: Your Account
53: Forums
54: Forums
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Your Account
61: Forums
62: Forums
63: Photo Albums
64: Home
65: Your Account
66: Forums
67: Photo Albums
68: Treasury
69: Forums
70: Forums
71: Forums
72: Your Account
73: Forums
74: Forums
75: Home
76: Photo Albums
77: Photo Albums
78: Your Account
79: Home
80: Forums
81: Forums
82: Forums
83: Photo Albums
84: Forums
85: Your Account
86: Home
87: Photo Albums
88: Forums
89: Forums
90: Photo Albums
91: Forums
92: Forums
93: Home
94: Forums
95: Forums
96: Home
97: Forums
98: Your Account
99: Forums
100: Home
101: Forums
102: Forums
103: Your Account
104: Forums
105: Forums
106: Home
107: Forums
108: Your Account
109: Forums
110: Home
111: Forums
112: Home
113: Your Account
114: Your Account
115: Forums
116: Forums
117: Forums
118: Home
119: Forums
120: Forums
121: Forums
122: Forums
123: Forums
124: Home
125: Forums
126: Photo Albums
127: Forums
128: Forums
129: Forums
130: Home
131: Forums
132: Forums
133: Forums
134: Home
135: Your Account
136: Photo Albums
137: Home
138: Forums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 308
 Pictures: 2451
  · Views: 820725
  · Votes: 1316
  · Comments: 86
 

New AR Build!
Discussions related to Guns and Firearms
Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10  Next
View previous topic :: View next topic  
Author Message
fnuser
Super Member
Super Member


Joined: Dec 23, 2008
Posts: 914
Location: S.W. Missouri, U.S.A.

PostPosted: Wed Nov 10, 2010 8:25 pm    Post subject: Re: New AR Build! Reply with quote

Elvis,
I'll provide you with non-bias reports if you'lll be patient

_________________
N.R.A. Endowment Member
Back to top
View user's profile Photo Gallery
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 8314
Location: Fort Worth TX

PostPosted: Tue Nov 16, 2010 2:46 pm    Post subject: Re: New AR Build! Reply with quote

Ok, Dawgdad, Chambered, et all, I need some tips and encouragement. Got out to the range yesterday and finally got to a point in the barrel break-in process where I could shoot some groups between copper treatments. I had just picked up some Remington .223 50gr HPs to try in my S&W M&P with a 16” barrel so thought I’d send those first down the new barrel. The group out of my newly built AR was not impressive. Group is pictured below. Not what I would expect out of a match-grade bull barrel but then again the velocities varied from 3259 to 3410 fps, 24” barrel. Not what you would call hi-grade ammo.

While the barrel copper treatment was in process I shot the same rounds through my M&P (3040 fps avg) and got this pleasing group from an M4 configured AR. I shot some more and continued to get groups like this with my 1.5x scope at 100 yards. Needless to say my heart was in my stomach



new_ar_build_barrel_break-in_15_nov.jpg
 Description:
 Filesize:  38.06 KB
 Viewed:  10310 Time(s)

new_ar_build_barrel_break-in_15_nov.jpg


_________________
"To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt

"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein
Back to top
View user's profile Photo Gallery
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 8314
Location: Fort Worth TX

PostPosted: Tue Nov 16, 2010 2:48 pm    Post subject: Re: New AR Build! Reply with quote

After the cleaning, I went back to the Fiocchi 40gr V-max’s and sent 4 down range. They had shot well from a clean barrel and got this grouping. Not as good as Marty’s .204 but respectable and my heart is not experiencing acid reflux. Cleaned again and sent four Fiochi 69gr SMK Match down range with similar hopes. However, I got a disappointing group. My M&P will shoot the 69gr SMK 1 MOA all day.

Repeat clean and tried my hand-loaded Hornady 75gr A-Max. Not that good. If you through out the 1st fouler shot, I might consider it a respectable start. The 24.5gr of Varget didn’t even show any pressure signs on the primers.

BTW, all these were shot with the gas turned off so essentially was operating a straight-pull bolt action. When I got home, I measured the barrel twist just to make sure it was 1 in 8. I’ve had stranger mistakes made before and with the way it was acting with the 40gr bullets I expected to see the twist come out at 1 in 12. It was right on 1:8 as ordered. Good news is I have 500 rounds of the 40gr V-max!

Any feedback you can provide would be appreciated.



75gr_hornady_vld_with_varget.jpg
 Description:
 Filesize:  24.3 KB
 Viewed:  10309 Time(s)

75gr_hornady_vld_with_varget.jpg


_________________
"To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt

"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein
Back to top
View user's profile Photo Gallery
Dawgdad
Super Member
Super Member


Joined: Feb 08, 2006
Posts: 1065
Location: On the Prairie

PostPosted: Tue Nov 16, 2010 3:18 pm    Post subject: Re: New AR Build! Reply with quote

Is the 2.385" COAL measured from the chamber? They need to be .010-.015" off lands for the best results. You cannot get great groups trying to jump them from much further. I get 0.5-1.0MOA in the sweet spot and from as close as .030" the groups open up to pattern size....

Just for grins - try 23.8 Varget... a little slower but they tend to settle down real well in my barrels at 2700 fps.

Also - you will really see the benefit at 300+yards with the A maxes. When your 40 grainers start corkscrewing- these will be just going to sleep.

_________________
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency...
Back to top
View user's profile Photo Gallery
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 8314
Location: Fort Worth TX

PostPosted: Tue Nov 16, 2010 8:37 pm    Post subject: Re: New AR Build! Reply with quote

Dawgdad wrote:
Is the 2.385" COAL measured from the chamber?

No, this is the recommended COAL from Hornady. Thought I'd just try it for starters while breaking it in. I'll take the time to get within .030".

Dawgdad wrote:
Just for grins - try 23.8 Varget... a little slower but they tend to settle down real well in my barrels at 2700 fps.

Wow, that was a good suggestion! I was thinking of going the other way since the pressure signs were so low and I thought I should be getting more velocity out of it. I'll try that load next outing.

Thanks!!

_________________
"To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt

"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein
Back to top
View user's profile Photo Gallery
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 8314
Location: Fort Worth TX

PostPosted: Tue Nov 16, 2010 10:36 pm    Post subject: Re: New AR Build! Reply with quote

Dawgdad wrote:
Is the 2.385" COAL measured from the chamber?

No, this is the recommended COAL from Hornady. Thought I'd just try it for starters while breaking it in. I'll take the time to get within .030".

Dawgdad wrote:
Just for grins - try 23.8 Varget... a little slower but they tend to settle down real well in my barrels at 2700 fps.

Wow, that was a good suggestion! I was thinking of going the other way since the pressure signs were so low and I thought I should be getting more velocity out of it. I'll try that load next outing.

Thanks!!

_________________
"To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt

"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein
Back to top
View user's profile Photo Gallery
Elvis
Super Member
Super Member


Joined: Jul 27, 2008
Posts: 9239
Location: south island New Zealand

PostPosted: Tue Nov 16, 2010 11:31 pm    Post subject: Re: New AR Build! Reply with quote

looking forward to progress reports. your barrel may settle down and start to shoot better soon all by itself. my buddies 270wsm was crap till it broke in now its a tack driver.

_________________
You shot it You pluck it !
Them who eats the most duck eats the most feathers!
Back to top
View user's profile
44marty
Super Member
Super Member


Joined: Mar 20, 2009
Posts: 775
Location: Cheshire, MA; USA

PostPosted: Wed Nov 17, 2010 1:13 am    Post subject: Re: New AR Build! Reply with quote

You may also want to try a different bullet. The Hdy A-Max have a great reputation, but I have found better results with the V-Max (this I can't explain, and it baffles me) and even better groups with Sierra bullets.

Edit: Have you tried IMR 4064 or IMR 4895 powders?

_________________
_____________________________________

The strength of the wolf is in the pack; the strength of the pack is in the wolf. ~ R. Kipling

I LOVE YOU, LADY LUCK !!!
Back to top
View user's profile Photo Gallery
chambered221
Super Member
Super Member


Joined: Aug 17, 2007
Posts: 3455
Location: Lost for good !!!

PostPosted: Wed Nov 17, 2010 7:21 am    Post subject: Re: New AR Build! Reply with quote

The 1.5X scope more than likely added to group size !!!

When doing load development I prefer at least a 12X scope with a fine cross hair. I've got an older Leupold 16X target model I've kept around just for this job. Next time your at the range take a look at how much area your cross hairs cover at a 100 yard target with various scopes set at different powers.
With lower powers it's not uncommon to need a 2" or larger aiming point. What you can't see is actually what part of that dot or square the center point of your cross hairs are on. You could very easily be adding a 1" or better to a group and not even realize it.
When using low powers I prefer a target such as this and concentrate on the cross hair as a whole instead of the center section. In the past I've even made my own in order to have them sized correctly.


_________________
Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!

A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.
~George Washington
Back to top
View user's profile Photo Gallery
Aloysius
Super Member
Super Member


Joined: Nov 03, 2009
Posts: 2438
Location: B., Belgium

PostPosted: Wed Nov 17, 2010 8:43 am    Post subject: Re: New AR Build! Reply with quote

Chamber, you never tried an X-cross for target? I always find it easy to put the +-cross of the optics straight on the X of the target. (but my X-s are not so well formed as your red thingies)
Back to top
View user's profile
Dawgdad
Super Member
Super Member


Joined: Feb 08, 2006
Posts: 1065
Location: On the Prairie

PostPosted: Wed Nov 17, 2010 9:46 am    Post subject: Re: New AR Build! Reply with quote

lots and lots of choices for bullets and powders.... I hear good things about the IMR 8208XBR too.

4064 and 4895 perform well but I hate sticking lincoln logs in the little bitty case mouth...

SMK 80's are anther proven winner.. Berger VLD's too but sometimes they need a 7 twist to get tight.


Try the 77SMK or 75 hornady BTHP at mag length (2.250") with 24.0gr RE - 15 proven over and over again by some of the best in the nation.

Do not give up on this one yet. If you have a comparator and can get the ogive lenght set up on the sweet spot these will hammer out past 600.

If you do not have a comparator yet... I would work on the 69 and 77SMK's at mag length from 2650-2750 fps range you may get some higher velocities with your longer barrel.

_________________
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency...
Back to top
View user's profile Photo Gallery
Dawgdad
Super Member
Super Member


Joined: Feb 08, 2006
Posts: 1065
Location: On the Prairie

PostPosted: Wed Nov 17, 2010 9:46 am    Post subject: Re: New AR Build! Reply with quote

Was this barrel cut with the Wylde chamber?

_________________
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency...
Back to top
View user's profile Photo Gallery
Dawgdad
Super Member
Super Member


Joined: Feb 08, 2006
Posts: 1065
Location: On the Prairie

PostPosted: Wed Nov 17, 2010 10:07 am    Post subject: Re: New AR Build! Reply with quote

You do know what the WOA barrel break in procedure is???

Just shoot it!. I did run a jagged patch of JB paste on the throat and a few passes up the barrel on my 20" varmint barrel but that was it.

Turn the gas on - put a 3x9 or higher power scope on top and shoot a few 10 shot raid fire string through it - let it cool and try your slow fire groups again without cleaning in between. Heresy I know but it works for me.

Also - if you can get more than 100 yards to shoot at - these A-maxes can actually - yes counter intuitive I know - get better at distance.

I have seen 68 hornady match loads that were shooting bug hole 1/2 MOA groups at 100 open up to 1 moa at 200 2 moa at 300 and 3 moa at 600...

While a 75 A max that was 1.5 moa at 100 and 200 went to .8 moa at 300 and 1 moa at 600... it takes those big long pencils a few hundred yards to line out sometimes. Kind of like a dragster spinning its wheels at the starting line then grabbing traction andgoing straight down the track. This is where the higher BC really kicks in.

_________________
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency...
Back to top
View user's profile Photo Gallery
chambered221
Super Member
Super Member


Joined: Aug 17, 2007
Posts: 3455
Location: Lost for good !!!

PostPosted: Wed Nov 17, 2010 11:23 am    Post subject: Re: New AR Build! Reply with quote

Aloysius wrote:
Chamber, you never tried an X-cross for target?

No I haven't..........first time I've heard of such method !!!
I have tried numerous types of aiming points and methods over the years but have always returned to the smallest orange dot that I can still see around the cross-hairs or the bracket method as above.

I just wish I could find more of those 1/4 inch orange dots........only ever seen them once.......bought all of them and they're about gone. Sad

_________________
Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!

A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.
~George Washington
Back to top
View user's profile Photo Gallery
Dawgdad
Super Member
Super Member


Joined: Feb 08, 2006
Posts: 1065
Location: On the Prairie

PostPosted: Wed Nov 17, 2010 1:07 pm    Post subject: Re: New AR Build! Reply with quote

[quote="chambered221...
I just wish I could find more of those 1/4 inch orange dots........only ever seen them once.......bought all of them and they're about gone. :([/quote]


like these?

or these in Red

red 1/4" stickers

_________________
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency...
Back to top
View user's profile Photo Gallery
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Gun & Firearm Discussions
Page 5 of 10
All times are GMT - 7 Hours
Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10  Next



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by *Dizfunkshunal* :.