4inch coax predictions?

[mopherman]

Ill probably end up just going at it with my dremmle and a grinding wheel.
also, what kind of bumper did you use? or did you?

[turbohacker]

I have fired it over 50 times with no bumper and it still works great. Ive evn taken it to 165 PSI!! and it didnt blow the valve, but holy sh*t was it crazy!!(i shot a 2" hole saw out of it and it went through 3 pieses of 1/2: plywood and then put a gouge in my cinderblock wall

[mopherman]

nice, cant wait to get started
ima hit the sack 11:43

[jackssmirkingrevenge]

@jackssmirk-A .44 magnum,thats getting out of hand!You gave me links to a website with caluclators to find the muzzle energy of projectile and I can't seem to find them.If you could be as good to post the link that would great.Wanting to find the energy of some of my pneumatics .

Easy to use muzzle energy calculator can be found here, though I prefer to use this one as it plots a graph of muzzle energy for the whole velocity range and gives ft/lbs to 2 decimal places.

To see how muzzle energy compares with firearm ballistics, a detailed range of popular cartridge statistics (velocity, weight, muzzle energy etc) can be found here

[jackssmirkingrevenge]

I have fired it over 50 times with no bumper and it still works great.

It's only a matter of time, you should fit at least a neoprene disk.

[pyromaniac]

Ahh yes an 3"endcap,fill it with space filling foam or similar to reduce the pilot volume.Haha I wouldn't shoot something like that in town or a city thats a little crazy and could see something bad happening..

hows 20 acers of farm land?

[mopherman]

Ahh yes an 3"endcap,fill it with space filling foam or similar to reduce the pilot volume.Haha I wouldn't shoot something like that in town or a city thats a little crazy and could see something bad happening..

hows 20 acers of farm land?

looks like thats gonna be its permanant home. still got that computor monitor?

[pyromaniac]

Yup . ill need to get you down more often. once we finish it that is.

the empty caulk tubes are light though. We may need to fill them with something.

[jackssmirkingrevenge]

the empty caulk tubes are light though. We may need to fill them with something.

fill the first 1/4th of the tube with concrete and you have a perfect drag-stabilised armor piercing shot

[mopherman]

1/4 full are supposed to be pretty accurate. well, as accurate as you can get out of a high velosity cardboard tube. how about we weight them with sand?
edit: jack beat me to it

[jackssmirkingrevenge]

how about we weight them with sand?

Sand mixed with some elmers glue would make a good concrete substitute too

[mopherman]

how about we weight them with sand?

Sand mixed with some elmers glue would make a good concrete substitute too

i actualy like the concrete idea more. glue sounds messy. btw thanks for the imput guys!

[jackssmirkingrevenge]

sand and glue isn't going to be any more messy than mixing concrete.

Another good idea would be to use the empty caulk tube as a sabot, with that sort of power on tap it would make a killer shotgun with marbles.

[mopherman]

or golf balls with wadding or a sabbot

[jackssmirkingrevenge]

or a single golf ball at high velocity but don't let these ideas run away with you, don't forget you have to go out and build the thing first