Very average guns are purchased at Dick's or SA. Pawn shops occasionally have some very nice firearms, not because they were pawned but due to nature of the used gun business. Many gun owners like to "trade" up, pawn/gun shops are a great place for this. Online isn't a bad place to purchase a ...

2)muzzle brakes work best on smaller calibers.

crap... quick, go tell the Russians! ... but for your own safety, don't tell everyone :D

Spudguns are relatively low pressure devices, however they compensate for this by using larger surfaces - compare spudgun calibres to firearm calibres, for ...

I have 'played' with muzzle brakes in my few years as an armorer. Several things worth mentioning would be:
1)the increased 'roar' from a muzzle brake depends on where you are standing in relation to the brake.
2)muzzle brakes work best on smaller calibers.
3)muzzle brakes work best with high ...

Bumping an old topic is a direct result from using the search function. Adding replies of "cool cannon, dude" or "where did you buy your sprinkler valve,dude" are immature and annoying. If your post has absolutely no relevance to a thread, don't post. Fairly simple concept, huh.

Don't be fooled by the whole "rifling" myth. While rifling does help in accuracy it is not the only factor. Over the last few centuries ballisticians(sp?) have been trying to perfect an accurate firearm/projectile. It is not just the firearm that is assumed to be accurate but more so, the projectile ...

The power of google.

http://www.detonationfilms.com/ThunderpipeFX.htm

so the power of your air rifle is relative to that of someone whipping a rock at something . and you have chronoed it at around 600 FPS at 10 pumps . then you pressurized a plastic pop bottle to aobut 150 PSI . absolutely devistating results, not. maybe for your next scientific experiment you could ...

the "already found a forum" argument is fairly lame according to alexa.com

http://www.alexa.com/data/details/traff ... dfiles.com

There has been a very excellent post by clide called GB semi. It doesn't come up on the first page of the search results, but second or third. Sometimes you have to wade through a whole lot of crap to find relevant posts.


Good Luck

You should be able to check if a certain store has the items in stock if you use their website, I believe.

That is one very nice "toy".


well basically i built a ghetto flow restrictor into the coupling just after the regulator. which makes it so the blowgun valve can be held open for several seconds without severely offsetting the propane mix. this flow restrictor also means the propane meter takes ...

So, I moved the barrel farther back into the tee and it worked. Thanks for the help guys.

So, I should move the barrel further back into the tee.

jrrdw: Are you asking center of ID or lineal center? If lineal, the image posted shows where the piston sits when fully pressurized. If center of ID, yes.

dongfang: Yes, there is some frontal area, but not much. When the pilot valve is triggered the entire gun is emptied through the pilot valve ...

I've recently been trying to build a piston valve in a copper tee. I'm using a 3/4"X3/4"X1/2" tee. The barrel is 1/2" copper. My piston is 3/4" oak dowel with piece of neoprene for a sealing face. I have it all together and now have a problem I can't sort out.

The problem is, I can pressurize the ...