Author Topic: PP700 adventure started(Artemis PP700s-a) (Read 277777 times))

Voltar1 · « **Reply #1460 on:** October 07, 2018, 01:54:32 PM »

Well said, and therefore ' length of barrel' has nothing to do with accuracy!
Longer barrel affects SHOOTABILITY possibly but not ACCURACY!

All good here :-)
Walter

nervoustrigger · « **Reply #1461 on:** October 07, 2018, 03:56:50 PM »

If my aim via open sights is imprecise due to a short sight radius, I miss the center of the target.

If the wind blows my pellet off target a little more because I'm in a bad region of its ballistic coefficient, I miss the center of the target.

If the pellet's trajectory is more arced (low velocity), cant error affects it more and I miss the center of the target.

So I contend barrel length does affect accuracy. Not in insurmountable ways and not by a massive margin, but affects it nonetheless.

bandg · « **Reply #1462 on:** October 07, 2018, 04:18:17 PM »

Seems the discussion has turned to a largely semantic issue but I do agree with Jason. That's why I try to avoid making absolute statements. As I noted earlier, their has been discussion of shorter barrels in some AA guns aiding accuracy due to less time for any movement of the gun to change POI (pellet exits barrel quicker). Similar with lower energy guns possibly being more accurate than higher energy ones in general (less movement of gun means possibly more accuracy). Barrel length possibly may not be directly related to accuracy of the BARREL but it certainly can be related to accuracy of the GUN. And harmonics haven't even been mentioned. I would venture to guess that taking an unchoked barrel and gradually shortening it by a consistent amount and checking accuracy at each step would result in higher accuracy at certain points due to harmonics. So does barrel length have anything to do with accuracy? Not sure myself but I'm pretty sure that saying it absolutely does not is incorrect.

Voltar1 · « **Reply #1463 on:** October 08, 2018, 07:09:24 PM »

Enjoying my PP700SA a lot!
Made up a 177 barrel for it and cannot believe how many shots it gets. About 2/3 down the green on the gauge with 50 shots. Looks like 70 shots on tap.
Anyone come up with a better set of sights for this pistol I would love to hear about it.
Cheers
Walter

Wayne52 · « **Reply #1464 on:** October 08, 2018, 07:13:29 PM »

Heck if it's not raining in the morning maybe I'll get the PP700SA out, have only hunted one time with it this year. Did get a red squirrel with it though.

bandg · « **Reply #1465 on:** October 08, 2018, 08:29:29 PM »

Can't say that it's better but I did manage to fit a Glock adjustable rear sight to mine. It is a polymer sight which many people don't like, it is windage adjustable only, and it's design is a bit unusual but it does provide some windage adjustment.

Voltar1 · « **Reply #1466 on:** October 08, 2018, 09:33:21 PM »

The oem windage adjust is fine but lacking elevation adjustment limits precise aiming. A friend is planning to use a cp88 sight. I like that one and the LPA
No source for umerex parts that I can find.
Looking at the sight off a Hatsan AT44 and might use that.
Good fun for sure
Walter

nervoustrigger · « **Reply #1467 on:** October 08, 2018, 09:56:58 PM »

Quote from: Voltar1 on October 08, 2018, 07:09:24 PM

Made up a 177 barrel for it and cannot believe how many shots it gets. About 2/3 down the green on the gauge with 50 shots. Looks like 70 shots on tap.

Very nice! To what velocity/energy did you tune it? I had mine set around 13fpe for a while but I'm getting a lot more use of out it tuned to 7fpe.

Voltar1 · « **Reply #1468 on:** October 08, 2018, 11:34:34 PM »

Without achange in tunefrom 22cal it is doing 575 with 7.33gr JSBs
Shoots great there just under your tune eh?

nervoustrigger · « **Reply #1469 on:** October 09, 2018, 06:45:15 AM »

Yes indeed, I've enjoyed having a pistol with a long shot count...and there's still enough energy to take a squirrel that sneaks up on me.

It does still have that velocity rise during the 90 shot string which annoys me, just not enough to make me want to spend half again as much on an aftermarket regulator. For the 10-25 yard shooting we're doing with it, it's just fine.

Thiel · « **Reply #1470 on:** October 10, 2018, 02:54:35 PM »

hey,

i got now 2 top caps from spa air cylinders that are both leaking out off the fill port - not from the gauge!
i removed the gauge and the head screw thats inside. i cant see how to get access to the fillport valve.
can someone help me out ?

bandg · « **Reply #1471 on:** October 10, 2018, 03:39:33 PM »

Correction to my prior post-sorry folks. The Glock site that can be fitted to the pp700 is elevation adjustable but it is unusual in that only a center section moves up and down and the actual sides of the site are fixed. It makes for a somewhat unusual sight picture but it works OK. Don't know that I would do it again but as noted it is OK.

Rallyshark · « **Reply #1472 on:** October 10, 2018, 10:57:27 PM »

Quote from: Thiel on October 10, 2018, 02:54:35 PM

hey,

i got now 2 top caps from spa air cylinders that are both leaking out off the fill port - not from the gauge!
i removed the gauge and the head screw thats inside. i cant see how to get access to the fillport valve.
can someone help me out ?

It has been a while since I took that part of mine apart... There isn't really a valve so much as there is that screw inside the cylinder and an o-ring on it. That o-ring probably has trash on it, or is cut. You should be able to get that o-ring out when you remove the screw.

Thiel · « **Reply #1473 on:** October 12, 2018, 02:29:28 PM »

Yeah, you were right.
Its just a screw with a o-ring underdeath it. thats chinese: simple, cheap, working and easy to fix.

i had to change the o-ring on the breech / barrel too but my problem with a loud bang / air escaping was not solved. i had to tighten down the valve itself. but before you can do that, you have to remove the small grub screw at the side!!
now its dead silent again with my weihrauch moderader (im restricted to 7,5J)

thanks for your help!

Voltar1 · « **Reply #1474 on:** October 14, 2018, 08:25:29 PM »

Built a reg tester setter fixture. Hope pics will post

Voltar1 · « **Reply #1475 on:** October 14, 2018, 08:29:31 PM »

I found many references in this thread to the breech tp restrict or setscrew. IMO if that is it's actual purpose a better design would have been installed.
IMNSHO it is merely a screw to plug the drilling of the passage.
Loving it
Cheers

nervoustrigger · « **Reply #1476 on:** October 14, 2018, 09:16:44 PM »

The transfer port restrictor screw on my .177 has to be almost bottomed out before it begins to reduce the velocity. All other things being equal, it should have a bigger impact on the .22. I never bothered trying but I suspect one could remove a portion of the threads at the end, leaving an unthreaded nose to reach down deeper and block a greater portion of the passage.

d-cuttler · « **Reply #1477 on:** October 16, 2018, 04:40:02 PM »

Quote from: Voltar1 on October 08, 2018, 07:09:24 PM

Enjoying my PP700SA a lot!
Made up a 177 barrel for it and cannot believe how many shots it gets. About 2/3 down the green on the gauge with 50 shots. Looks like 70 shots on tap.
Anyone come up with a better set of sights for this pistol I would love to hear about it.
Cheers
Walter

I contacted Snowpeak about a fully adjustable sight for the PP700SA, and found that the sights from their co2 pistol will fit. I have them in hand, but need to find the time to drill and tap one hole in the receiver. The rear sight slides on the 11mm dovetail, and the elevation screw also acts to anchor the sight assy.

I may do it this weekend and will post photos if finished.

Voltar1 · « **Reply #1478 on:** October 16, 2018, 09:12:48 PM »

That sounds promising. What about taller front sight?
Pics will be great.
Walter

Thiel · « **Reply #1479 on:** October 17, 2018, 03:30:56 AM »

How do you guys want to mount the frontsights ? i got the green grip version with that aluminium shroud - round shape

Thank you to our advertisers!

PP700 adventure started(Artemis PP700s-a)

Author Topic: PP700 adventure started(Artemis PP700s-a) (Read 277777 times))