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BTB sawed-off mark II
Posted: Fri Feb 08, 2008 3:05 pm
by Brian the brain
Here it is!!
Pneumatic sawed-off shotgun mark II.
Same concept as the original, just cleaner, better and made to sell in numbers!!
THis one will be used to get a contract to build 10 of these, to be used by members of an airgun club. ( they have permission)
Only the QEV restricts the pressure to...I believe Ragnarok used them at 35 bar right??
Well...not much to say here, just...enjoy!
Posted: Fri Feb 08, 2008 3:26 pm
by MrCrowley
Wow that is clean, isn't the handle a bit excessive with the pilot volume?
You could've put a the schrader before the ball valve and left the handle.
3/4" QEV with a 1" barrel and 2" chamber?
Posted: Fri Feb 08, 2008 3:32 pm
by daberno123
Thats awesome!
I love how clean it looks, great job!
How much are you charging the airgun club to make this gun for them?
Posted: Fri Feb 08, 2008 3:32 pm
by Brian the brain
What do you mean by the handle is excessive?
When the pump is removed the handle part empties up to the ballvalve.
The schrader is empty, no valve, just the outside.
Can't get a smaller pilot volume than this.
I built it like that on purpose.
Try 1/2" QEV, 1-1/4" chamber and 3/4 barrel.
It's going to be sold to guys that are used to .177 airguns...
They pay 200 euro's. Spudfilers would pay less offcourse.
Posted: Fri Feb 08, 2008 3:54 pm
by MrCrowley
Brian the brain wrote:What do you mean by the handle is excessive?
When the pump is removed the handle part empties up to the ballvalve.
The schrader is empty, no valve, just the outside.
Can't get a smaller pilot volume than this.
I built it like that on purpose.
Try 1/2" QEV, 1-1/4" chamber and 3/4 barrel.
It's going to be sold to guys that are used to .177 airguns...
They pay 200 euro's. Spudfilers would pay less offcourse.
Ah my bad, I completely over-looked that.
Oh well I was close-ish.
Posted: Fri Feb 08, 2008 3:59 pm
by Maniac
Ahh very nice cannon very clean im glad youre able to make some bussiness off of it. Also how do you make those costom? ball valve handles?
Posted: Fri Feb 08, 2008 4:08 pm
by Brian the brain
I used a vice and a hammer and filed it into shape.
Think the " clients" will be impressed??
Posted: Fri Feb 08, 2008 6:48 pm
by daberno123
They'll be going from shooting .177 to .75. Yeah they'll be impressed
Posted: Fri Feb 08, 2008 6:56 pm
by Novacastrian
Looks like those airgun guys are going to be having fun.
Do you have an idea of performance yet, like fps and ftlbs? What ammo will be recommended?
Nice work Brian.
Posted: Fri Feb 08, 2008 7:08 pm
by FeLeX
Hey just wondering how much did this cost? This looks sexy as hell. I wanna see some damage shots.
Posted: Fri Feb 08, 2008 7:09 pm
by rcman50166
Novacastrian wrote:Looks like those airgun guys are going to be having fun.
Do you have an idea of performance yet, like fps and ftlbs? What ammo will be recommended?
Nice work Brian.
Did you just use the imperial system?
BTW that is a very clean gun, you won't have to worry about it exploding that's for sure!
Posted: Fri Feb 08, 2008 7:27 pm
by blind909
you always make your projects really nice looking, they always are very clean. good job btb.
Posted: Fri Feb 08, 2008 7:53 pm
by Novacastrian
rcman50166 wrote:Did you just use the imperial system?
Well not really, i asked for the values to be expressed in imperial, is there a problem with that? I find it easier to visualize the effect of cannons when performance is described that way.
When i make cannons i use nothing but Metric, apart from when i use .50cal barrels.
Posted: Fri Feb 08, 2008 7:56 pm
by pizlo
Where did you get that sleek QEV?
Posted: Sat Feb 09, 2008 12:34 am
by jackssmirkingrevenge
Very nice, I've been wanting to make a sawn-off style 0.75@ high pressure launcher for a while now, but I think I'd want mine with a can on the front
