SpudFiles

That is going to be so burly!

JSR, Found some time to set up the pour. We had to heat the molds to around + 375° F before the tail started to fill nicely. Note the 9 volt battery and .177" (4.5mm) pellet in there for scale. Also a 2" UHMW blank for a pneumatic round we are planning. Oh, one of the first pellets that did not fill 100% was cut in half to show the skirt profile.

*Expletives scarcely repeatable in polite company*



Beautiful, have any been fired yet? What does it weigh compared to a typical potato slug?

Action / damage video will be posted later when the new coaxial pnuematic gun is introduced.

Math says it should weigh .811 lbs, or about 368 grams.

Looking forward I take it the prototype Mike was telling me about worked well then?

The things you can do with a large machine shop. Yes, "It" does work well but there are a few technical issues. I do not want to steal his thunder. Another thing, I made the pellets to 1.5 sched 40, his test gun has an aluminum 2" sched 40 barrel. Oh well. When the VMC is open, there is a larger mold gonna be made...

Those "pellets" are amazing. With the weight of the 2" bore pellets nearing 1 lb and the new prototype easily running 200PSI (max current shop pressure) should be some serious energy. Replacement O-rings should be here soon!

I like that you included the UHMW slug.

USGF can you post the 20 minute ghetto dart from earlier?

Mike
Sureshot Inc. / http://www.ultimatespudgun.com

This was NOT made by USGF

haha!

ghetto but I bet it works, any damage pics?

jackssmirkingrevenge wrote:

inonickname wrote:Unfortunately unless your going supersonic it will be rather inefficient but oh well.


(WRI)
1. Is for subsonic flight
2. Is for supersonic flight
3. Is for hypersonic flight

I beg to differ ;P

I'm not sure about that really. The variance of slight changes and velocities plays a large part. Though however, when testing water rockets (same rocket, just different nosecone) the performance was greatly improved (max altitude) with a semi spherical leading edge. Though whatever works for you.

I bet those slugs would be awesome though..beautiful work on them. Destruction evidence shall be appreciated..

Oh dude...this is a little too cool to be real. I wonder how straight they will fly without rifling. I want one!

I wonder how many out there have experience with pneumatic intensifiers? We have endless 125 PSI shop air. So, with a 2.2 to 1 intensifier, we should easily see 250 PSI. Got most everything off Ebay. We will build one soon.

jackssmirkingrevenge wrote:haha!

ghetto but I bet it works, any damage pics?

Hit the edge of a small c channel and left a endmill shaped crater. We will re-load and get a nice shot off on larger target.

Mike
Sureshot / http://www.ultimatespudgun.com

USGF wrote:JSR, Found some time to set up the pour. We had to heat the molds to around + 375° F before the tail started to fill nicely. Note the 9 volt battery and .177" (4.5mm) pellet in there for scale. Also a 2" UHMW blank for a pneumatic round we are planning. Oh, one of the first pellets that did not fill 100% was cut in half to show the skirt profile.

Will these molds be for sale at some point? Or would I have to come to you as a client? If for sale, any idea on a general price range for say a mold for 1 1/2" SCH10? I would love trying different materials to make the pellets out of. I have a rifled barrel that would be wicked with wax pellets or a more durable yet soft material.