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: 193
BOT: 1
Total: 194
Who Is Where:
 Visitors:
01: Your Account
02: Photo Albums
03: Forums
04: Forums
05: Forums
06: Photo Albums
07: Forums
08: Forums
09: Forums
10: Your Account
11: Forums
12: Home
13: Home
14: Forums
15: Photo Albums
16: Forums
17: Forums
18: Photo Albums
19: Forums
20: Forums
21: Your Account
22: Home
23: Home
24: Home
25: Home
26: Forums
27: Forums
28: Forums
29: Photo Albums
30: Forums
31: Forums
32: Forums
33: Home
34: Your Account
35: Your Account
36: Forums
37: Home
38: Photo Albums
39: Forums
40: News
41: Home
42: Home
43: Photo Albums
44: Forums
45: Forums
46: Forums
47: Forums
48: Home
49: Forums
50: Home
51: Forums
52: Forums
53: Forums
54: Home
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Forums
61: Forums
62: Forums
63: Forums
64: Home
65: Forums
66: Photo Albums
67: Forums
68: Your Account
69: Forums
70: Home
71: Forums
72: Forums
73: Forums
74: Home
75: Forums
76: Forums
77: Home
78: Photo Albums
79: Your Account
80: Your Account
81: Home
82: Photo Albums
83: Forums
84: Forums
85: Home
86: Forums
87: Home
88: Home
89: Home
90: Forums
91: Home
92: Forums
93: Forums
94: Forums
95: Photo Albums
96: Forums
97: Photo Albums
98: Home
99: Forums
100: Your Account
101: Home
102: Forums
103: Statistics
104: Your Account
105: Forums
106: Your Account
107: Your Account
108: Photo Albums
109: Forums
110: Photo Albums
111: Forums
112: Home
113: Forums
114: Forums
115: Home
116: Forums
117: Home
118: Forums
119: Home
120: Forums
121: Forums
122: Home
123: Home
124: Forums
125: Forums
126: Home
127: Forums
128: Home
129: Your Account
130: Forums
131: Forums
132: Home
133: Forums
134: Photo Albums
135: Forums
136: Home
137: Forums
138: Home
139: Your Account
140: Forums
141: Forums
142: Home
143: Forums
144: Forums
145: Forums
146: Forums
147: Forums
148: Forums
149: Home
150: Home
151: Forums
152: Home
153: Forums
154: Forums
155: Home
156: Your Account
157: Forums
158: News
159: Home
160: Your Account
161: Home
162: Your Account
163: Home
164: Photo Albums
165: Forums
166: Forums
167: Forums
168: Photo Albums
169: Home
170: Home
171: Home
172: Forums
173: Forums
174: Home
175: Forums
176: Forums
177: Photo Albums
178: Photo Albums
179: Photo Albums
180: Photo Albums
181: Photo Albums
182: Your Account
183: Forums
184: Forums
185: Forums
186: Your Account
187: Forums
188: Forums
189: Your Account
190: Your Account
191: Photo Albums
192: Photo Albums
193: Home
  BOT:
01: Photo Albums

Staff Online:

No staff members are online!
 

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

Misfires and bolt actions
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition

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


Joined: Aug 11, 2005
Posts: 608
Location: Fairbanks, Alaska

PostPosted: Fri Feb 03, 2006 8:18 pm    Post subject: Misfires and bolt actions Reply with quote

I just had to respond to a comment made in the misfire and deactivating primers string,but was locked out for whatever reason.It was stated that a bolt action is either cocked or uncocked and short stroking it will not cause a weak primer strike. It is true that they are either cocked or uncocked,however not closing the bolt completely will DEFINITELY cause a weak strike on primer,at least on modern cock on opening bolt guns like the model 700,77,or 70 to name a few. If the bolt handle is not lowered completely, upon firing the cocking piece will slam into the camming cut on the bolt body instead of traveling forward unimpeded. The striker will have to finish closing the bolt before the firing pin ever touches the primer taking away much of its force.
Back to top
View user's profile
sniper
Super Member
Super Member


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

PostPosted: Fri Feb 03, 2006 9:47 pm    Post subject: Re: Misfires and bolt actions Reply with quote

roklok wrote:
...however not closing the bolt completely will DEFINITELY cause a weak strike on primer,at least on modern cock on opening bolt guns like the model 700,77,or 70 to name a few. If the bolt handle is not lowered completely, upon firing the cocking piece will slam into the camming cut on the bolt body instead of traveling forward unimpeded. The striker will have to finish closing the bolt before the firing pin ever touches the primer taking away much of its force.


roklok:

I had never thought about that before, but you are right. Aren't we talking about two separate things that are part of the same action, though? "Short stroking" is cycling the bolt too little to pick up a new round and chamber it, but isn't not fully closing the bolt called being "not fully in battery"?

It is very likely that NFIB occurred during the stressful situation you found yourself in, resulting in the conditions you described, and not ammo or any flaw in the gun... except for the second try you gave the round. That is puzzling.

Then the question raised its head: In the older, cock on closing actions, and I'm not sure which those were, was the camming surface set up opposite of what modern actions are? If so, with a failure to completely close the bolt, it seems that the striker assembly hitting the camming surface would knock the bolt open, and if the round fired, the bolt, brass, and gas would be blown out of the action, back into the shooter's face.

It has been 50+ years, but I faintly remember ads for kits to convert the old bolt actions to cock on opening, and new guns advertising the fact that they had the feature. I can remember thinking "I want that. " Maybe this is a safety feature that was/is not widely known? The gun makers quietly fixing a rare, but serious problem?

What do you guys think?
Back to top
View user's profile
Dimitri
Super Member
Super Member


Joined: Nov 25, 2005
Posts: 5944

PostPosted: Sat Feb 04, 2006 9:15 am    Post subject: Re: Misfires and bolt actions Reply with quote

The M1917 Springfeilds were cock on close I belive. So are the Lee-Enfeilds. Smile

I've handled a Enfeild at a hunting show once, I can tell you think with its cock on close if you dont close it all the way the only thing that will happen is the bolt will move back and it wont let you hit the primer to shoot it Smile

"Out of battery" problems such as explosions cant happen with them the spring that makes the firing pin stay in the uncocked position will push the bolt back and not allow the trigger to engage it unless its completly closed.

Dimitri

_________________
A thousand hills, but no birds in flight, ten thousand paths, with no people's tracks. A lonely boat, a straw-hatted old man, fishing alone in the cold river snow.
Back to top
View user's profile Photo Gallery
roklok
Super Member
Super Member


Joined: Aug 11, 2005
Posts: 608
Location: Fairbanks, Alaska

PostPosted: Sat Feb 04, 2006 3:05 pm    Post subject: Re: Misfires and bolt actions Reply with quote

I was never fully positive what all "short stroking" encompassed.I know most often it is a term used to describe not withdrawing the bolt fully rearward as you said. As far as cock on closing rifles,they dont have a camming cut on the bolt, they use a sear that catches the cocking piece as the bolt is closed. Usually about 1 inch before the bolt is fully forward and able to be turned down you can feel extra resistance as the firing pin spring is being compressed.The Savage 99 lever action also uses this system. At any rate I believe that not getting the bolt fully closed or in battery was probably what caused my misfire.Bear fever!!
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 1 of 1
All times are GMT - 7 Hours



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* :.