Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 62 users online :: 5 registered, 0 hidden and 57 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

stock dimensions

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

stock dimensions

Unread postAuthor: ALIHISGREAT » Wed Oct 17, 2007 3:59 pm

i wan to make a stock out of wood for my bb sniper in the style of an l96, styre scout tactical, or m40a3 but i can't find dimensions anywhere for any stock :cry:
  • 0

User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: silverdooty » Wed Oct 17, 2007 6:41 pm

i like my stock with a 14 1/2" length of pull, a 3/4" drop at heel and a 3/4" drop at comb. this would be more common for an assault rifle such as an FAL than a sniper.

try googling

Code: Select all
rifle stock "length of pull" "drop at heel" "drop at comb"


827 results
  • 0


silverdooty
Staff Sergeant
Staff Sergeant
 
Posts: 102
Joined: Mon Aug 06, 2007 8:52 pm
Location: old folks home
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Wed Oct 17, 2007 10:13 pm

Have you got a ruler and a calculator?
  • 0

Attachments
steyr_scout.jpg
steyr_scout.jpg (7.84 KiB) Viewed 649 times
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: ALIHISGREAT » Thu Oct 18, 2007 1:24 am

jackssmirkingrevenge wrote:Have you got a ruler and a calculator?


that was going to be my last resort lol
  • 0

User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 18, 2007 2:00 am

You can do it fairly easy with image editing software.

Crop the side view in such a way that the ends of the image are the muzzle and butt end of the rifle, resize the width of the image to the actual length of the rifle then print it out in its actual size. Tape the resulting sheets together and you have a full size template of the rifle.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Marco321 » Thu Oct 18, 2007 2:17 am

jackssmirkingrevenge wrote:Have you got a ruler and a calculator?


Ruler and calculators are for the weak :P

But seriously, go up to a mirror, hold an imaginary gun as you would want to hold the finished product. Then get a friend, or use your other hand with a ruler and roughly gauge the distances. Then if you feel the need, cut the stock out of some ply wood as a template, adjust it as you feel the need, then you have a template for the stock.
  • 0

Failure to plan is planning to fail.

The 7 P's - Proper Prior Preparation Prevents Piss Poor Performance
User avatar
Marco321
Colonel
Colonel
 
Posts: 540
Joined: Tue May 15, 2007 2:56 am
Location: Sydney, Australia
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 18, 2007 2:47 am

Ruler and calculators are for the weak


Au contraire, they're for the patient who get on with the job instead of waiting for everything to be spoon fed to them :P :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Sponsored

Sponsor
 


Unread postAuthor: Marco321 » Thu Oct 18, 2007 2:59 am

jackssmirkingrevenge wrote:
Ruler and calculators are for the weak


Au contraire, they're for the patient who get on with the job instead of waiting for everything to be spoon fed to them :P :D

I know, i was joking. I use my calculator and ruler alot, they have a permanent spot on my desk :P
  • 0

Failure to plan is planning to fail.

The 7 P's - Proper Prior Preparation Prevents Piss Poor Performance
User avatar
Marco321
Colonel
Colonel
 
Posts: 540
Joined: Tue May 15, 2007 2:56 am
Location: Sydney, Australia
Reputation: 0

Unread postAuthor: ALIHISGREAT » Thu Oct 18, 2007 9:37 am

i went with the ruler and calculator method and made myself a nice cardboard template. also do you think a 1/4" qev would have good enough flow for a 6mm barrel? 1/4" is around 6mm isn't it so maybe i would have to have a 1/2" qev?
  • 0

Last edited by ALIHISGREAT on Thu Oct 18, 2007 9:40 am, edited 1 time in total.
User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 18, 2007 9:40 am

Sounds about right.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: ALIHISGREAT » Thu Oct 18, 2007 9:47 am

jackssmirkingrevenge wrote:Sounds about right.


could you put this through ggdt for me please? a 1/2" qev piloted by a 1/4" blowgun, a 60cm 6mm barrel and a 40cm 1/2" chamber shooting a bb at 200psi. thanks.
  • 0

User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: MaxuS » Thu Oct 18, 2007 10:23 am

About time you learnt how to use GGDT.
  • 0

User avatar
MaxuS
Sergeant Major
Sergeant Major
 
Posts: 198
Joined: Sun Sep 02, 2007 5:11 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 18, 2007 10:31 am

MaxuS wrote:About time you learnt how to use GGDT.


I think it doesn't work on his PC

I don't know the details of your QEV so can't really model it.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: ALIHISGREAT » Thu Oct 18, 2007 11:52 am

jackssmirkingrevenge wrote:
MaxuS wrote:About time you learnt how to use GGDT.


I think it doesn't work on his PC

I don't know the details of your QEV so can't really model it.


i can't find any details :(
  • 0

User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 18, 2007 1:06 pm

A rough estimate with a 0.20 gram BB gives you around 750 feet per second.

A small tip - cutting the chamber length to 20cm and increasing the pressure to 300 psi gives you around 810 feet per second.

Lengthening the barrel to 90cm gives around 860 feet per second with your original setup and around 920 feet per second with the suggested shorter chamber and higher pressure. Just a thought ;)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Next

Return to General Spud Cannon Related

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'