Its finals this week. Which means my trouble shooting tests will have to wait till Friday or early next week. I know, I know... they were supposed to be done a while ago. But my girlfriend ate up more time than usual these past couple weeks. Deal with it.
Now school is reaping its revenge and you, dear paintball community, are left in the lurch for it. I'm sorry.
But while were waiting, to whet your whistle and to help direct the project, I need a little help.
I've been expanding my machining capabilities for some other projects (.300BLK!!!!), and by happy coincidence I have everything I need to make one or two peice paintball barrels.
We all know that punkworks has done test after test on paintball barrel performance. And from these test we have a set of best practices for use with existing barrels and a set of theortical ideals for future barrels. Lots of people have utilized the former, but to my knowledge, no manufacturer has done much with the latter. I dont know if its still an issue, but I recall Bryce lamenting the lack of small bore one peices, and other people pining for a long control bore two peice. On the surface this makes a lot of sense. Retooling a production line is hideously expensive, and if Im guessing thier manufacturing methodology corecttly, even experimenting with bore sizes would be a costly endeavor. I reckon most of the serious manufactures use custom drawn hydraulic tubing (which would require their supplier to retool for any experimentation with bore size) or they gun-drill thier bores. In which case they would need a highly specialized custom deep hole drill bit for every size they wanted to try. Either way your looking at a pretty serious investment for a performance gain that only a small portion of your market is educated enough to care about. Throw on top of that the reality of organizational inertia and (until recently) a down market, and you have a recipe for low innovation stagnation.
In that sense, it's pretty understandable that nobody's made a Punkworks spec barrel for them to test.
So what I'm interested in is this:
1. What barrels are you aware of that have incorporated Punkworks findings? I'm curious to see if the quality testing done here has influenced the industry yet.
2. What are the Punkworks ideal barrel specs for the below:
- One Peice: length
- Two Peice: control bore length
- Two Peice: tip length
- Two Peice: tip bore size
- Both Barrels: porting vs no porting
I can do lengths up to say... 16 inches (I'll have to experiment to find the limit of my equipment) and I can control bore size down to the limit of my measuring ability, which is about +/- 1 mil. If anyone is willing to loan out a decent bore gauage and micrometer I can produce tighter tolerances.
Most of this info is scattered across the 100+ Punkworks forum posts, but rather than data mine and risk missing something or worse, including outdated findings, I'd rather have a topical discussion about it.
My FS test is my baby right now so between that and the experimentation necessary to dial in any machining process, it'll be a bit before I can get anything out for Punkworks to test. I'm shooting for sometime next month. It's between semsters so I'll have more free time than usual.
And as a quick note, I'll include my thoughts on one peices vs two peices. I prefer one peice but advise two peices. The improvement in velocity consistency in a two peice doesnt seem to help accuracy much, but what it does do, is allow you to ride a higher velocity limit and still keep your gun in the safe zone. The advantages there should be plain. I dont want to undersell the advantages of efficiency. At the very least it makes your life more conveinent since you can go longer between fills and spend more time cleaning your gear and prepping for the next game. And in large woodsball fields and scenario games, the added on field time will very likely lead to more kills than the slightly higher velocity. If your just looking for brass tack performance, go for a two peice. But if you dont have a pit crew or you play long games, you'll probbaly be happier with a one peice.
Edited by Whiskey Hammer, 23 April 2014 - 12:09 PM.