Do you need a buddy bottle to flash fill it to make it seal? If so just let me know.
Is the valve designed so that you could put the poppet stem in a drill and lightly burnish the seat and poppet material by spinning while applying pressure to the poppet so it creates a visible contact area between the valve seat and poppet seat. I use that method to presurface the delrin poppet seats I make for my QBs to prevent the normal short term failure of the poppets sealing surface. It works quite well to help the initial seal between the two parts till the valve cycles enough times to create it own proper sealing surface.Mike
Quote from: buldawg76 on February 13, 2017, 01:50:56 AMIs the valve designed so that you could put the poppet stem in a drill and lightly burnish the seat and poppet material by spinning while applying pressure to the poppet so it creates a visible contact area between the valve seat and poppet seat. I use that method to presurface the delrin poppet seats I make for my QBs to prevent the normal short term failure of the poppets sealing surface. It works quite well to help the initial seal between the two parts till the valve cycles enough times to create it own proper sealing surface.MikeI actually tried that earlier, but there is good news now. I was correct about the regulator being the issue. I rearranged the belleville washers and the valve started sealing up soon as I hit 70-80 bar But wait, there's more! That put my reg set point of 110 bar roughly. I gave it some hammer spring and let it fly. 826fps with the 10.5 CPUM .177s, which comes out to 15.91fpe. Now this little gun is starting to hit it's stride. If I could get that regulator set point up to 130 bar, I feel like it would come darn close to 20fpe. I backed the hammer spring down some more, and it was shooting right around 750fps with the 10.5s. It had a nice snappy report at that velocity, and air usage seems good. I didn't run a full string, but I will in a day or two for sure. Needless, to say MISSION ACCOMPLISHED!Now, I'm starting to feel like this PP700s-a has some real potential as a tree rat dispenser if the accuracy is there. I'm waiting on an LDC and adapter for it, before I take it outside to target/pellet testing. I am so "dang" happy I got it figured out finally! As soon as that LDC and adapter show up, I'll slap a red dot or scope of some sort on it, and see how she shoots
Can you post the o-ring sizes? I would like to replace the ones in mine as well. Also, what is the process of adjusting the regulator pressure (outside of re-arranging the Bellevue washers)?Thanks,Dan
I finally got to put some pellets on target today with the S-A , and I am pleasantly surprised. I still don't have my LDC adapter yet, but noise didn't matter where we were shooting. When I did my part, I was able to shoot a dime sized group at 25 yards. That was with a reflex sight(2.5 MOA dot). The little pistol is seems to be very accurate. I could easily hit cans at 50 yards with it on almost every shot. I was even able to shoot some little medicine containers at 50 yards with it. I also made a couple of shots on bottles at 80 yards even(remember, reflex sight). I had so much fun shooting it, that I didn't even shoot a full fill from my Bullboss. This little pistol is a hoot, and I gotta say the Truglo works very well with it. I think it is time to spend the money on some different pellets now that I know the gun is worth the trouble.
Mines a .177 if it's anything as accurate as yours is I'll be very happy. 635 with the JSB 10.34s? That's great numbers I plan on using the JSB 8.44 as I have 12 tins of them lol
Quote from: Dairyboy on February 20, 2017, 01:24:36 PMMines a .177 if it's anything as accurate as yours is I'll be very happy. 635 with the JSB 10.34s? That's great numbers I plan on using the JSB 8.44 as I have 12 tins of them lolIt's also why I ordered up some 7.0 grain RWS Meisterkugeln WCs. As much as I love heavy pellets for squirrels, wadcutters are even more fun on sparrows. ZAP! The best part is there's a whole lot of room for tuning with the trigger, TP, hammer spring tension, and regulator all being adjustable from the get-go. SPA really delivered a great platform.I think you'll be reallllllly happy with your pistol. Mine is easily my most accurate airgun- even more so than my QB-79 (heresy!).