McCoy, What is the diameter of the "exit hole" of the muzzle brake and the inside diameter of the barrel? The "exit hole" is 3.5". I was worried about the effectiveness of the muzzle brake before testing (we almost went with a 3" tee with a hole cut to the bore size), but the brake we have now work...

We were thinking something "towable" but we couldn't figure out a way cheap/free enough to do it without hacking apart our riding lawn mower/bikes. It would be neat though. Oooooh! We do have an old wheel barrow or two laying around. I'll ask around and see what folks can come up with.

Ok. So this is a not-so-good paint image of the cannon on the stand. We're gonna try to get it done this weekend (if we can acquire the materials), but time will definitely be an issue. Currently 4x4's are the main posts with 2x6's as the form of the triangle. A 2x4 will be the cross brace and 2x4's...

Niiiiiiice. As stated above, the gun looks fantastic. Another outstanding cannon to add to your collection.

Brian the brain wrote: Oh..but we do love whales..

Yeah we do! Their oil/blubber is great!

Haha... Oyeah. Nice looking cannon you got there. I'm a fan of lime green on black.

i was also thinking about great stuff but dont know if it could handle the shock or not. It's not too terrible. We used the one sabot-esque thing we made in our pneumatic cannon. It doesn't crack or blow by and fires our demo-round pretty quickly and that's at 100p.s.i. It should do just fine for y...

chinnerz wrote:video:
it failed btw...

Don't you just hate that?

Try GreatStuff. You can get it at a hardware store. It's that expanding foam sealer/insulator stuff. It's a little finicky, but if you have your mold and round greased fairly well it should work with no problem. I always get too excited about my sabot round, but if you let it sit for a while (6hrs) ...

PCGUY wrote:It looks like the latest version of PHP for the server that I installed has a bug which breaks the Wiki ugh....

We have faith in your abilities, PCGUY. You will get us through this tough time of woe and want.

As long as it's not cellular core, and it doesn't look like it is because it lacks black labeling and a NOT FOR PRESSURE label, then it looks completely safe to use/continue using. How long have you been using the old gun?

jackssmirkingrevenge wrote: I think it's the viewing public's fault, not the producers'...

Fantastic source, JSR. I get all of my up to date news information from the Onion. Better than FOX or CNN any old day.

I'm not having any problems. Everything seems to work fine on my end. Could it be heavy traffic? There were about 100 folks on here earlier.

[quote="artillerycreations" McCoy, thanks for bringing up barrel support. The first 4 foot of the barrel would be in a sleeve, leaving the last 16 feet or so unsupported. I need to look into that.[/quote] Definitely. With our 10' barrel we had 7' unsupported in the original plan. We had to add a bar...

You really get a scale for the project in the pic. I like how the barrel is almost eye-high. I don't know if that was the original plan, but it looks like it would make for easier target acquisition. Nice looking gun. Congratulations on a successful build.