Tuning Repair and Tuning for Taipan Veteran Standard .22

You can order direct from Huma. I've read that their delivery time is not bad. I'm curious, what issues are you having with the Taipan reg? They are generally very good.

Get it directly from Huma. Very straightforward install if you want to try it yourself. I believe there is a video on youtube as well.

https://www.huma-air.com/Taipan-Veteran-pressure-regulator

Well, it should certainly be more consistent. That said, test groups at 25 yards should still be very good, even one hole. Could be other issues.

Not at all. I have a .22 Standard Vet, and like it very much. It's reg is very consistent. But, I have shot short yardage groups with rifles displaying rather great ES, and, in some cases they shot surprisingly well. Assuming scope and you are operating well, it almost has to be a barrel issue. Have you thoroughly cleaned the barrel? By that I mean off the rifle using a good rod and brush.

You can order direct from Huma. I've read that their delivery time is not bad. I'm curious, what issues are you having with the Taipan reg? They are generally very good.

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I've had fps swings of over 50fps. 

I had tried to sell this. Was thinking the problem shooting decent groups was just me. Glad it didn't sell since it apparently has problems. Only a couple of months old. 

I think I'm going back to the dealer as a first step.

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Your hammer spring is not adjusted to the knee of your reg setting. With the whole “speed dialer “ thing guys seem to forget that your reg setting is what actually controls your speed. Your hammer spring adjuster or “speed dialer “ is for finding efficiency. 

Your hammer spring is not adjusted to the knee of your reg setting. With the whole “speed dialer “ thing guys seem to forget that your reg setting is what actually controls your speed. Your hammer spring adjuster or “speed dialer “ is for finding efficiency.

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If the tune is substantially out of balance, it could certainly contribute to the ES issue, but I doubt that it is the primary cause of the accuracy problem. It's been my observation that accuracy issues are generally either shooter, barrel, or scope issues. 

Pat, the tune issue is easy to diagnose. Just see where your hammer spring tension is set, relative to the maximum velocity obtainable. Most rifles seem to shoot best when the HST setting yields a velocity in the range of 95-97% of maximum. If you are way off, and a new setting shows an acceptable ES, then you will know the reg is probably okay, although you might need to adjust it if the velocity is not what you want. Again, I sort of doubt this will be the fix for your accuracy issue, but it's worth finding out.

Ed

With the whole “speed dialer “ thing guys seem to forget that your reg setting is what actually controls your speed. Your hammer spring adjuster or “speed dialer “ is for finding efficiency.

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Well, as a practical matter, I think it's a bit of both. True, the HST setting might find the most efficient use of air, but relatively small adjustments to velocity, in most rifles, can be achieved without an unacceptable loss of efficiency. Most shooters would not find it practical to adjust the reg for a 25-50 fps change in velocity, assuming it can be achieved by HST, and without degradation in accuracy.

Pat, I honestly think the ES and accuracy issues are, at most, only loosely related. I suspect you have a bore that is fouled beyond the cleaning capability of a pull-through system. Or (less likely), you have a bad barrel. There are good videos on removing the barrel, and it's very simple. The breech seal is maintained in the receiver, so there is no O ring in the barrel to fret over. Once off, you can give the barrel a good scrubbing with a rod and brush. And since you're having issues, you may also want to polish it with JB bore paste. 

Or, return it to the dealer and describe the problems. Given that you have ES issues at those 2 rather widely spaced settings, does suggest the reg may not be working properly. Did the dealer include test results? I don't know where you bought it, and unfortunately the quality of dealer service varies greatly. 

All I’m saying is I’ve seen this before. Not the accuracy problem but the erratic velocity problem. If a guys max speed for his reg setting is let’s say 950 and he’s using his magic speed dial to try and shoot 850, it seems like some Taipans shot strings start to look like a heart monitor. Bottom line is if your gun will shoot 960 maxed out, you better have the HS set for around 930. But your accuracy is probably going to suck. My Taipan standard shooting 18.1’s can only be pushed to 910fps for max accuracy out to 100yrds. CZ barrel. My max speed with the HS or speed dial turned in to max was 935fps with 18’s. Hence my gun shot nice in the 890-905fps range.

Bummer your having this issue. Curious what it could be. I was going to recommend either Scott aka Motorhead or mtnghost as tuners who know the Taipans very well that could fix you up.