Paintball

[russc]

I don't think the pre-reg expansion actually matters at all. It might even help stop liquid from going past the reg. I have the bottomline, macro, now a pressure gauge after the reg too and I'm at shot #38 in this new test and I'm at 288 fps.

[edit] turns out shot 38 was the last one. I'll post the list in a sec but the reg tester did hurt efficiency a bit.


did another test. This time I have a reg tester on the gun post-reg, it appears to have slightly hurt the efficiency, so devolumizing may still be a good idea...to a point. You want enough to seal your valve and allow for good consistency, but too much can still hurt. I still think it's the post-reg volume that will end up mattering the most.

I re-sweet spotted the reg, you can tell the difference now that it doesn't shoot up at the end. Turned mainspring out abuot 3 turns, 240 was the post-sweetspotting pressure, not sure what it was before.

1. 293
242 <- second ball, grungy and old
281
290
280
292
286
281
252 <--second ball, I stop using it after this shot
10. 284
283
279
289
293
290
290
290
285
287
20. 300
295
294
295
299
296
291
299
294
296
30. 297
292
297
295
295
295
292
288
38. 240
vents, last shot.

Soo...who's going to build the first low pressure regulated KP-2 with a turned down cocker valve?

[Brassballs]

to some extent.you might have the correct pre-expansion size for that set-up but ??

2 shots extra is no big deal anyways after geting 45!

[Frink]

Originally Posted by russc

Soo...who's going to build the first low pressure regulated KP-2 with a turned down cocker valve?

A CA convert KP2 with a hurc ASA mount sounds just about right...

I've never directly compared a cocker valve to a sheridan valve, are their major differences besides larger air passageways on the cocker one?

Great work BTW.

[idkfa]

Shens!!! I see pixels in teh videoz!!@*!@^##!!!!!

EDIT: Being serious, I wonder if Nelson based guns would get any benefit from a regulator. Thoughts? And if not, why the difference?

[Brassballs]

""Soo...who's going to build the first low pressure regulated KP-2 with a turned down cocker valve? ""


changing 12ies' under fire is half the fun to me!

oh crap,oh crap,hurry up fingers!


hurc asa= yuck!

[russc]

Originally Posted by Brassballs

""Soo...who's going to build the first low pressure regulated KP-2 with a turned down cocker valve? ""


changing 12ies' under fire is half the fun to me!

oh crap,oh crap,hurry up fingers!


hurc asa= yuck!

I don't mind changing 12ies, in fact I buy them 1000 at a time...but when my KPs are getting 10 shots I get a little frustrated! You can't even empty a full side tube per cartridge while staying over 260 fps on some of the KPs I've seen!

[Brassballs]

sounds like you need a little help wildman.

PM sent

[Engus]

Originally Posted by Frink

A CA convert KP2 with a hurc ASA mount sounds just about right...

Great work BTW.

in chat russc was talking about having 12g, reg, volume chamber, and valve all inline in a custom bottom tube.

[russc]

Here's a test on my pre2k sniper:

AA Unireg
14" .685 un1tec
stock valve, sweetspotted at 500 psi
SI lever changer on XSV duckbill
Carter venturi bolt

1. 290
288
287
286
290
290
287
289
287
10. 290
295
292
289
295
284
287
?
286
285
20. 290
291
290
296
284
284
289
286
271
293
30. 284
30. 292
292
283
288
283
36. 263
227 - vents after shot

Again, a two shot drop in an otherwise flat FPS curve. The 2k+ got better efficiency, but I am running a venturi in this gun which may make a difference. Pressure is also about 250 psi higher and the springing is much harder.

[Rednecksniper]

a buddy of mine had an LP phantom for a while. he had it set more for consistency rather than efficiency. he was still hitting 35+ shots, but they were +- 1 every shot. nelsons weren't really made for LP, but ive been tinkering with making one.