HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: motard
New Today: 0
New Yesterday: 1
Overall: 12668

People Online:
Members: 0
Visitors: 153
BOT: 1
Total: 154
Who Is Where:
 Visitors:
01: Your Account
02: Forums
03: Forums
04: Photo Albums
05: Forums
06: Forums
07: Your Account
08: Forums
09: Forums
10: Forums
11: Your Account
12: Photo Albums
13: Home
14: Forums
15: Forums
16: Photo Albums
17: Forums
18: Forums
19: Forums
20: Forums
21: Forums
22: Forums
23: Forums
24: Forums
25: Forums
26: Forums
27: Your Account
28: Forums
29: Forums
30: Forums
31: Forums
32: Forums
33: Forums
34: Forums
35: Forums
36: Forums
37: Forums
38: Photo Albums
39: Forums
40: Forums
41: Forums
42: Forums
43: Forums
44: Forums
45: Forums
46: Forums
47: Forums
48: Forums
49: Photo Albums
50: Forums
51: Forums
52: Forums
53: Forums
54: Forums
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Forums
61: Forums
62: Forums
63: Forums
64: Forums
65: Forums
66: Forums
67: Photo Albums
68: Forums
69: Forums
70: Treasury
71: Home
72: Forums
73: Forums
74: Home
75: Forums
76: Forums
77: Forums
78: Forums
79: Home
80: Forums
81: Forums
82: Your Account
83: Photo Albums
84: Forums
85: Forums
86: Forums
87: Forums
88: Your Account
89: Forums
90: Forums
91: Forums
92: Photo Albums
93: Forums
94: Forums
95: Forums
96: Forums
97: Photo Albums
98: Forums
99: Forums
100: Forums
101: Forums
102: Photo Albums
103: Forums
104: Forums
105: Photo Albums
106: Forums
107: Forums
108: Forums
109: Forums
110: Forums
111: Forums
112: Photo Albums
113: Forums
114: Forums
115: Forums
116: Forums
117: Forums
118: Forums
119: Forums
120: Forums
121: Forums
122: Forums
123: Forums
124: Forums
125: Photo Albums
126: Forums
127: Home
128: Forums
129: Forums
130: Forums
131: Forums
132: Forums
133: Forums
134: Forums
135: Forums
136: Forums
137: Forums
138: Forums
139: Forums
140: Forums
141: Your Account
142: Forums
143: Forums
144: Forums
145: Forums
146: Photo Albums
147: Photo Albums
148: Forums
149: Forums
150: Forums
151: Forums
152: Forums
153: Forums
  BOT:
01: Your Account

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 305
 Pictures: 2366
  · Views: 493328
  · Votes: 1312
  · Comments: 86
 

Support our Advertisers

Testing groups @ 25 yards
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
Go to page Previous  1, 2
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition

View previous topic :: View next topic  
Author Message
Bushmaster
Super Member
Super Member


Joined: Jun 12, 2005
Posts: 10623
Location: Ava, Missouri

PostPosted: Thu Mar 13, 2008 7:55 am    Post subject: Re: Testing groups @ 25 yards Reply with quote

For rifle...50 yards, 100 yards and 200 yards...
For pistol/revolver...7 yards and 25 yards...

_________________
I have one nerve left and yer standin' on it...

DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote...
Back to top
View user's profile
gelandangan
Super Member
Super Member


Joined: May 07, 2006
Posts: 5927
Location: Sydney Australia

PostPosted: Thu Mar 13, 2008 4:49 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

Vince wrote:
Where is your SSAA Range in Sydney mate?

Will they allow you to put a wooden target frame out at 50m Gelan? I am surprised that they dropped everything under 100m because that is where the rimfire shooters do most of their shooting. Very strange mate.

Cheers, Vince

Yeah it used to be like that for years.. and then suddenly the 50 meters target is no longer allowed. Now both rimfire and center fires got to do 100 meters or more..
Crazy ... Confused

_________________
A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.

The government I trust .. is my .45-70 Government.

Do - Not try!


gelandangan.weebly.com/
Back to top
View user's profile Visit poster's website
sniper
Super Member
Super Member


Joined: Aug 18, 2005
Posts: 735
Location: Utah

PostPosted: Thu Mar 13, 2008 9:26 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

Bushmaster wrote:
For pistol/revolver...7 yards and 25 yards...

Yeah, they used to have a 7 yd targets at our range...until a pilgrim got shot in his left leg, about 4 in. below the WORST PLACE. Shocked

A woman was shooting at the next position, and a ricochet from her metal target frame (a good 12" from the center of her target) hit the guy. He was thrashing around, and the range personnel had to almost hold him down, and whining; "I want to go home!"

I went to interview him, and thought his strange personality was the result of the pain killers he was taking. Nope: He was dumb as a box of rocks. Too bad it wasn't higher, it would have stopped him from polluting the gene pool.

What did the range do wrong? Nothing, but my boss was a career burocrat, Censored so he decided to reward the guy for his stupidity.

And that is how the 7 yard targets disappeared from our range one day. Mad
Back to top
View user's profile
Handloader
Super Member
Super Member


Joined: Aug 22, 2005
Posts: 1032
Location: Phoenix, Arizona

PostPosted: Thu Mar 13, 2008 11:04 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

Bore sighting instruments are often good enough to get a rifle on paper at 25 yards. The old fashioned bore sighting by removing the bolt, holding the rifle static and matching the crosshairs to the bull on bolt action rifles is often good enough to place the first shot on paper at 100yds with a little practice. Done properly, it is better than the instrument sighting method.

For meaningful group testing, 200yds provides the most valuable information as bullets often stablize or destablize between 100 and 200yds. IOW I've had some rifles shoot the same size group at 200 as at 100, or, OTOH, I've had some that have tripled in size. Sierra Bullets suggest that seven shot groups provide far more validity than lesser numbers. Chronograph data becomes more valid with more shots, too.

A single group, in and of itself, is often meaningless unless it can be backed up with three or more groups with similar results. Hence, if a good load is identified, three or more seven shot groups at 200yds provide a "proof" aggregate that has statistical validity.

Using bases or rings that compensate for windage is beneficial as the less distortion in the erector tube the better the durability and light transmission. Shimming the base(s) for elevation to minimize elevation adjustment has the same benefits. Regretably, most shooters don't wish to take the field or range time to zero the base/ring adjustments before resorting to the fine tuning of the scopes adjustments. For those that do, benefits are found in durability and optical quality.
Back to top
View user's profile
Pumpkinslinger
Super Member
Super Member


Joined: Sep 22, 2007
Posts: 4524
Location: NC foothills

PostPosted: Thu Mar 13, 2008 11:54 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

Handloader, interesting point on the number of shots in string and the validity of the results. I've seen that advice on the seven shot groups too someplace. I prefer to shoot a 10 shot group when I'm seriously trying to determine the consistency of a load, especially when chronographing. For zeroing a rifle I'm content with firing 3 rounds.

_________________
Mike

"I ain't no better than anyone else, and there ain't no one better than me!" Ma Kettle

Back to top
View user's profile AIM Address Yahoo Messenger Photo Gallery
chambered221
Super Member
Super Member


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

PostPosted: Fri Mar 14, 2008 5:27 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

100 - 200 yards it is. Evryone seems to be in agreement with that.

Thanks to evryone for their info and thoughts.

Should I happen to see this guy again, I'll have to ask him why he does his testing at 25 yards !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

_________________
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
Deleted_User_2665
Super Member
Super Member


Joined: May 06, 2006
Posts: 380

PostPosted: Sat Mar 15, 2008 6:46 pm    Post subject: Re: Testing groups @ 25 yards Reply with quote

Life begins at 250..........
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition
Page 2 of 2
All times are GMT - 7 Hours
Go to page Previous  1, 2



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


Advertisements
 


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 :.