Paintball

[Eli]

My understanding of tuning for 12gram efficiency was to aim for the highest pressure/lowest volume possible. If this is the case, then why does my Sniper II get 30+ good shots with a stock WGP reg? If I understand correctly, the reg outputs at 350psi, and also increases the overall volume the gas has to occupy. The line from the BL to the reg also creates more volume. This Sniper has stock springs. I know the reg lets out a metered amount of air, which should contribute to efficiency, but the LP thing is contrary to what I've always been told.

Somebody 'splain, please.

[Sly1]

don't touch it and be happy?

if you mean its one of those black inline reg's, they can be adjusted.. I'm not sure how high up they go but yeah, its just alot harder than a typical reg

[Eli]

I know they can be adjusted. Up to 500psi I think. I'm just wondering how, if volume and pressure are so critical to 12gram efficiency, I can get so many good shots? With the changer screwed directly into the vert ASA, I'm lucky to get 15. Granted, I haven't played with the springing yet.

Is using a reg just the way to go? It seems like it would really help compensate for the inconsistencies associated with most 12gram brands these days.

[brycelarson]

well, efficiency is also a matter of matching the input pressure to the valve.

It sounds like your reg is sweet-spotted very well.

Don't mess with a good thing.

[Sly1]

could have to do with paint to bore match also.. tighter the fit, lower the output neccessary to launch it at the desired fps.. less air per shot means more shots..

[brycelarson]

Originally Posted by Sly1

could have to do with paint to bore match also.. tighter the fit, lower the output neccessary to launch it at the desired fps.. less air per shot means more shots..

I'm going to go out on a limb and assume that he's using the same barrel when using the reg as when going direct - and in that case the 30 to 15 has to be his gun liking the lower pressure better.

[Rayodder]

it is hard to talk about efficiency without chrono numbers, when it comes to Snipers there a lot of parts contributing to efficiencies, we are talking about 5 different set of springs (red, blue, green, yellow and the original Sheridan sprinbgs), 3 category of valves (Sniper1/Sheridan valve, pre-99 cocker and countless LP aftermarket valves), different weight hammers, restrictive/venturi bolts than finally you have 99 and 2k bodies..... so there are simply an exhaustive number of possibilities.

To be honest 30+ shots out of a twelve grams is not really all that spectacular, old Sniper/Sheridan internals using Sheridan spring can achieve a shot count of mid 30's out of box.

[russc]

The thing about high pressure low volume setups is that they rely on the expanding CO2 from liquid to gas. As liquid is drawn out, velocity can suffer and you see your fps curve down.

With low pressure 12 gram setups, you can ensure maximum conversion of liquid to gas. The PPS Pyre is supposedly geared for this. A regulator allows you to shoot lower into a 12 gram, with greater consistency.

[Eli]

Yeah, that makes sense. Thanks russc.

WARNING! One of those questions:

What do you think the ideal pressure would be to maximize efficiency?

[brycelarson]

Originally Posted by Eli

What do you think the ideal pressure would be to maximize efficiency?

Warning taken - there isn't an ideal pressure. As as been stated the sniper has too many parts and options to answer that.

Give us details on all of the guts and then one might be able to make an educated guess - but sweetspotting your gun then checking pressure is the only reliable way to tell.