PP700 adventure started(Artemis PP700s-a)

[Harold999]

I have read in the beginning of this topic that people are exchanging the standard regulator for a Huma.
Why is that? The one coming with the gun not good?

[wll2506]

It is not about the cost it is about what we can do with it and the potential

I agree 100%, many of the add-ons do nothing for raw performance ... this gun is already a little monster. I'm shooting 177 cal 10.5gr CPUM's at `12fpe, ... she is a beast. If this gun was a 22cal I would be in the 14fpe range for sure !!

Went out this am and my PP700S-A got another Feral Pigeon under her belt at 30 yds. My PP700W is at home and I need to bring here to the dance too ;-  )

wll

[RobertMcC]

I have read in the beginning of this topic that people are exchanging the standard regulator for a Huma.
Why is that? The one coming with the gun not good?

They're known to creep.

[Luis Leon]

It is not about the cost it is about what we can do with it and the potential

I agree 100%, many of the add-ons do nothing for raw performance ... this gun is already a little monster. I'm shooting 177 cal 10.5gr CPUM's at `12fpe, ... she is a beast. If this gun was a 22cal I would be in the 14fpe range for sure !!

Went out this am and my PP700S-A got another Feral Pigeon under her belt at 30 yds. My PP700W is at home and I need to bring here to the dance too ;-  )

wll

Good job on the pigeon, Will. Good stalking to get within 30 yards of a wary bird.

[nervoustrigger]

Creep, fail to regulate, or leak.  Mine did all 3 at some point.  Thankfully it’s rock solid now though.

[wll2506]

I have read in the beginning of this topic that people are exchanging the standard regulator for a Huma.
Why is that? The one coming with the gun not good?

My PP700S-A does not creep, but it leaks, I'll fix that in a few weeks when I get O rings. My PP700W has not lost one PSI in 2 weeks sitting in its case.

wll

[wll2506]

Thanks for the O-ring sizes!

By the way, the O-rings on mine are green which suggests they are HNBR (hydrogenated Buna-N).  It is a superior material to standard Buna-N in the areas of abrasion resistance and temperature.  Granted I don't know anything about the quality of these particular O-rings, I'm just saying it's better if all other things are equal.

I'm not sure why they went with it across the board, though.  The only ones that would benefit from it are the breech block O-ring and regulator spool O-rings.  All the rest are static O-rings.  Speaking of the abrasion resistance.  The temperature rating is irrelevant.

Which are the O rings that you would want HNBR. They are quite a bit more expensive than Buna-N but I don't want to keep taking this gun apart.

wll

[Pelletjunkie]

The breech oring takes a beating from the block sliding across it every time you load the gun. That might be the only one I would consider a HNBR. I just got good quality o rings for the whole gun. I am still on the original breech oring so far but my replacements are 90 duro.

[nervoustrigger]

Sorry, the color was misleading.  Consensus seems to be that they are Viton based on how they swell up.

Plain Buna-N in 70 durometer is a good material for replacements.  You might consider splurging for polyurethane for the two I mentioned that are subject to abrasion,  however I think it's splitting hairs because we're talking low cycle rate, no high temperature, and the associated surfaces are pretty smooth.   Personally I used Buna-N and I expect they will last a very long time.

[edit] I noticed Frank's comment about the breech O-ring seeing hard duty.  That isn't the case with mine but I only have the one gun for reference so I'm not sure if there are production variances that make some see more abrasion than others.  In my case, the replacement Buna-N has seen somewhere around 4000 pellets.  I inspected it a couple of weeks ago with a loupe and it still appears to be in great shape.  Once in a while I will put a teeny bit of silicone oil on it but it seems to rub off pretty quick so I'm not inclined to think it has done much to extend the O-ring's life. [/edit]

[Pelletjunkie]

I do the dab of silicone also. I also questioned if it’s worth it but what the heck. Hasn’t hurt anything.

[wll2506]

OK, I will go 70 duro Buna-N on all except the breach seal which I will go urethane 90 duro for abrasion resistance.

wll

[Harold999]

Okay, ordered one in .22. My goal is to get 20fpe out of it. Saw a guy on Youtube having this by just turning in the hammerspring and the regulator.
My problem is i don't have a chrony (yet).
Is it doable to get more power in a good way without having a chrony?
Any tips on how far i should turn both screws?

[Thane]

While you could shoot level and change the target distance measuring the drop of the pellet to estimate speed, it would remain a gross measurment.

Cheap and effective chronographs can be had on ali-express, many members have had success using them. Tuning with a chrono is great, really lets you know what a bit more hammer delivers.

[Backyard Shootr]

O-rings just showed up from the O-ring store. Quick, Quick shipping from them. Still waiting on Huma. That could take some time.

[RobertMcC]

Is it doable to get more power in a good way without having a chrony?

Yes and no. You can open ports, and crank down hammer tension. Go by sound. But there is no way of really knowing that if you are doing good with each mod. It's like tuning a car for horsepower without a dyno and just using how easy it is to spin the tires as a reference.

You can get some cheap chronys from China that work.

[anti-squirrel]

At 20 FPE you'll be running lower efficiency, but you'll be making holes in what you shoot.

I usually tweak my .177 up to 14 FPE give or take, but I just recently backed it back down to ~ 12 FPE with Beeman Silver Jets on account of enjoying eye-socket and ear-canal shots at 19 yards on squirrels.

One of the better purchases a shooter can make for a PP700 is quality glass with a fine reticle.  I don't mean expensive glass- just something that lets you utilize the accuracy these little pistols are capable off.  Chances are as you test pellets you'll find a number of pellets that group weel.  Mine shoot 4 different pellets with excellent accuracy, and groups well enough with 19 other pellets that at 20 yards I can shoot groups you can cover with a silver-dollar.   Another worthwhile purchase, IMO, is a folding stock, the LDC adapter, and a decent LDC to take the crack off the shot cycle.  I know a lot of folks have experience regulator creep, but mine is still holding solid after 2+ years.  I have around 16,500 pellets through mine, and it remains my most-shot airgun, surpassing even my modified 1377.

[RobertMcC]

At 20 FPE you'll be running lower efficiency, but you'll be making holes in what you shoot.

I usually tweak my .177 up to 14 FPE give or take, but I just recently backed it back down to ~ 12 FPE with Beeman Silver Jets on account of enjoying eye-socket and ear-canal shots at 19 yards on squirrels.

One of the better purchases a shooter can make for a PP700 is quality glass with a fine reticle.  I don't mean expensive glass- just something that lets you utilize the accuracy these little pistols are capable off.  Chances are as you test pellets you'll find a number of pellets that group weel.  Mine shoot 4 different pellets with excellent accuracy, and groups well enough with 19 other pellets that at 20 yards I can shoot groups you can cover with a silver-dollar.   Another worthwhile purchase, IMO, is a folding stock, the LDC adapter, and a decent LDC to take the crack off the shot cycle.  I know a lot of folks have experience regulator creep, but mine is still holding solid after 2+ years.  I have around 16,500 pellets through mine, and it remains my most-shot airgun, surpassing even my modified 1377.

12 FPE, mines only running like 4.1 lol

[Pelletjunkie]

Okay, ordered one in .22. My goal is to get 20fpe out of it. Saw a guy on Youtube having this by just turning in the hammerspring and the regulator.
My problem is i don't have a chrony (yet).
Is it doable to get more power in a good way without having a chrony?
Any tips on how far i should turn both screws?

Owning a PCP without a chronograph is kinda like buying a car without a speedometer. It can be done but you will be doing a lot of guessing.

[Thane]

My .177 also likes 11-12 FPE. This is where the stock reg was most reliable and without creep. Lower pressures delivered inconsistant results.

[anti-squirrel]

My .177 also likes 11-12 FPE. This is where the stock reg was most reliable and without creep. Lower pressures delivered inconsistent results.

When I turned mine down  10-ish FPE, I found the first 3 or 4 shots were erratic, then it was +/- 5 FPS per my Caldwell until it fell off the regulator.  At 14 FPE, every shot was on-point.  At 12 FPE, that first shot after refilling to 220 bar is low.  If I fill to 200 bar, the regulator just seems more "regular".  I cannot imagine one of these under 6 FPE.  Sure it would be fun with a long shot string, but my pistol is primarily a squirrel-killing tool (with occasional HOSP duties). 

Incidentally, the least accurate pellet in mine is a toss-up between Piranhas and Destroyers.  I'm sorely tempted to get the new JSBs, since those are only a hair less-accurate than the Beeman Silver Jets (which shouldn't be accurate since they're pointed).  Also of note: for pesting, the Skenco Ultrashocks and JSB Ultra Shocks make a wonderful meatslap upon contacting a squirrel's skull.