Search found 26179 matches

by jackssmirkingrevenge
Wed Apr 25, 2007 9:45 am
Forum: Ammo & Parts
Topic: steel ball bearing safety?
Replies: 11
Views: 2355

It's highly unlikely that you'll be able to fire them with enough force to distort them and make them unusuable.

I'd recommend a box full of old newpapers/magazines/carpet as a backstop.
by jackssmirkingrevenge
Wed Apr 25, 2007 9:33 am
Forum: Ammo & Parts
Topic: steel ball bearing safety?
Replies: 11
Views: 2355

Don't fire them at hard surfaces, ricochets are a bitch :roll:
by jackssmirkingrevenge
Wed Apr 25, 2007 7:27 am
Forum: Pneumatic Cannons
Topic: Schrader valve pressure rating and mounting a pressure gauge
Replies: 14
Views: 3903

I use schraders from bicycle tyre inner tubes, they don't normally see more than 50 psi in their typical use but I routinely use them at 400 psi and never had one die on me.
by jackssmirkingrevenge
Wed Apr 25, 2007 6:45 am
Forum: Combustion Cannons
Topic: My first Combustion
Replies: 33
Views: 11076

Bubba, in view of the message legible on that cap, doesn't it strike you as strangely ironic that adorning your launcher with dark rants is in itself a very emo thing to do?
by jackssmirkingrevenge
Wed Apr 25, 2007 6:38 am
Forum: Pneumatic Cannons
Topic: The Eclipse semi-auto
Replies: 99
Views: 34922

bboymatty wrote:Ship it to us aussies under the description of: pressure pipe fittings?
You do realise this is a public forum, as visible to you and I as it is to any memeber of the Law Enforcement community that might be watching?

Just a thought :wink:
by jackssmirkingrevenge
Wed Apr 25, 2007 6:13 am
Forum: Hybrid Cannons
Topic: Killjoy's FEAR
Replies: 27
Views: 8432

The longest range black power rifles won't exceed 2,000 feet per second, I find it hard to believe that a mix of propane and air can do better. I could be wrong, of course, but i'll need concrete chronograph/damage evidence to prove it.
by jackssmirkingrevenge
Wed Apr 25, 2007 5:58 am
Forum: Hybrid Cannons
Topic: Killjoy's FEAR
Replies: 27
Views: 8432

The gun is huge, very well constructed and looks the part No one is doubting that, it's an amazing achievement and I'll be the first to admit that I am jealous I don't have the space to build and fire such a monster - but as far as claiming close to mach 3 without solid propellant is concerned, the...
by jackssmirkingrevenge
Wed Apr 25, 2007 4:46 am
Forum: Hybrid Cannons
Topic: Killjoy's FEAR
Replies: 27
Views: 8432

Could some one do some simple math equations and find out the joules of energy of a golfball at 2,700FPS/45grams.Just interested to see how much energy this thing is capable of! Assuming the velocity figures are correct, for a 45 gram golfball travelling at 2700 feet per second, we get 15,285 joule...
by jackssmirkingrevenge
Wed Apr 25, 2007 2:49 am
Forum: Hybrid Cannons
Topic: Killjoy's FEAR
Replies: 27
Views: 8432

scary! and very impressive, but I still doubt that 2,700 FPS figure. What sort of penetration did you get with the drums? At that velocity, a 4 gram 0.223 bullet will punch straight through half an inch of steel plate. I'd expect a golfball weighing ten times more than the bullet travelling at the s...
by jackssmirkingrevenge
Wed Apr 25, 2007 2:41 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Airgun
Replies: 23
Views: 6513

well i could but im going for an airgun type gun not a cannon and i need it to be cheap and small enough to hide from my parens(they banned all of my others so im going small.) I won't preach about what you should or shouldn't be doing, I was lucky to have parents too scared to tell me to stop with...
by jackssmirkingrevenge
Wed Apr 25, 2007 1:32 am
Forum: General How-To & Discussion
Topic: Got caught
Replies: 20
Views: 2961

but they said its ok to do it on your own property not in a public place..........
They were perfectly right I'm afraid, you have only yourselves to blame.
by jackssmirkingrevenge
Tue Apr 24, 2007 11:30 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Airgun
Replies: 23
Views: 6513

one of these, you mean? http://www.aesthetic-endeavors.com/ms-150/images/thumbtack.jpg Depends on your valve, barrel length & diameter, chamber volume... Instead of improvising, why not save up a little, head down to the hardware store, buy some proper fittings and make something like this in less t...
by jackssmirkingrevenge
Tue Apr 24, 2007 11:19 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Airgun
Replies: 23
Views: 6513

Sorry to sound like a wet blanket but unless you can machine metal, there's no way you can use the spring linked to above.
by jackssmirkingrevenge
Tue Apr 24, 2007 11:13 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Airgun
Replies: 23
Views: 6513

Connecting the Barrel to the blowgun couldn't be simpler, just wrap it in tape until it fits the nozzle end (as per attachment) As to connecting the coke bottle to the other end, remove the collar to expose the thread, drill a good sized hole in the cap and use lost of epoxy to keep it in place. The...
by jackssmirkingrevenge
Tue Apr 24, 2007 10:42 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Airgun
Replies: 23
Views: 6513

Not a viable idea in my opinion, you're not going to manage to get more power than a cheap airsoft pistol unless you have access to proper machining facilities and high quality materials. Pneumatics offer much more power potential - look at commerical airguns, I've never seen a spring rifle do more ...