"Sniper" Gear

[Outcast569]

I personally use a PDI 330 (rated for 550 fps) Now with the short stroke in there Im sitting around 475ish.

As for the pull on it I dont have any thing to compare it to but I personally dont feel that it is that heavy. Others Ive let test it out say it is but maybe its just me.

[CDN_Stalker]

Originally Posted by Outcast569

I personally use a PDI 330 (rated for 550 fps) Now with the short stroke in there Im sitting around 475ish.

As for the pull on it I dont have any thing to compare it to but I personally dont feel that it is that heavy. Others Ive let test it out say it is but maybe its just me.

First time I heard of a PDI 330% spring. I think they had a 310% at one point, but 550fps seems kinda low for even a 300% spring.

[Outcast569]

Grabbed it from Amos a little while ago and was told it was a PDI 330 rated at 550 fps.

Considering the 200 springs were rated at 400-420 IIRC I think it seems fairly accurate.

[CDN_Stalker]

My PDI 300% put out close to 600fps w/.20g, so I guess this is a good example of the inconsistancies among PDI springs. I've had in my hands various 150% springs over the years, all have ranged from 6 3/8" long to 7" long, and of different thicknesses of wire. Of the 150%, the first I had put out 350fps pretty consistantly (as it should), but latter ones were anywhere between 350fps and 425fps, and different lengths. Add in they were a lot stiffer than the PDI 170% springs, and longer.................... hence the reason I push everyone away from PDI springs, is so hard to get a good one that performs as it should.

[Outcast569]

Originally Posted by CDN_Stalker

My PDI 300% put out close to 600fps w/.20g, so I guess this is a good example of the inconsistancies among PDI springs. I've had in my hands various 150% springs over the years, all have ranged from 6 3/8" long to 7" long, and of different thicknesses of wire. Of the 150%, the first I had put out 350fps pretty consistantly (as it should), but latter ones were anywhere between 350fps and 425fps, and different lengths. Add in they were a lot stiffer than the PDI 170% springs, and longer.................... hence the reason I push everyone away from PDI springs, is so hard to get a good one that performs as it should.

Hmm that wasnt the advice I was given from others. Any how, I recall reading a while back that you cannot use Laylax springs with full PDI internals. Is this true or bogus info? If they cannot deal with Laylax is there any way to test the spring to figure out what the strength of it really is?

The vsr I bought was fully PDI hence the PDI spring. The PDI 200 that the guy said was in there crono'd at about 375. Mind you this is with a short stroke in there but still.

[Steven]

Maybe i will keep it at around 400 FPS. This creates a much more stable BB flight am i correct?

[Dirty Deeds]

Originally Posted by CDN_Stalker

LOL! Prick! Where have you been hiding?

Took a sleight "vacation" from the airsoft scene, but now I'm back.

[Amos]

Originally Posted by CDN_Stalker

My PDI 300% put out close to 600fps w/.20g, so I guess this is a good example of the inconsistancies among PDI springs. I've had in my hands various 150% springs over the years, all have ranged from 6 3/8" long to 7" long, and of different thicknesses of wire. Of the 150%, the first I had put out 350fps pretty consistantly (as it should), but latter ones were anywhere between 350fps and 425fps, and different lengths. Add in they were a lot stiffer than the PDI 170% springs, and longer.................... hence the reason I push everyone away from PDI springs, is so hard to get a good one that performs as it should.

PDI springs are VERY good springs. They are hand-made in Japan.. Unfortunately, because they are hand made they are not very consistent spring to spring.

If you're using a PDI cylinder set you must use a 13mm spring otherwise the floating valve in your VC piston will get chewed up like crazy by the smaller diameter spring.

When my O-rings are new my VSR is able to do a 5 shot spread of +/- 0.5 FPS.. unfortunately my O-rings don't stay that new for very long ... I think I'm using a 130 or 140 spring with a 430mm 6.03 tight bore, and I'm getting roughly 450-460 FPS (Need my new O-rings damnit!)

Edit: With the PDI short stroke you'll lose roughly 30-50 FPS depending on your set-up.

[Steven]

So i should try for the PDI spring? I know i need a 13mm outer spring, so im not sure which one to get.

[Amos]

Do what I do, Buy 3 springs around the same range and use the ones that's closest to your target FPS lol

[damage]

Originally Posted by Steven

So i should try for the PDI spring? I know i need a 13mm outer spring, so im not sure which one to get.

PDI APS 220 or 240 then get PDI Power adjusters too.

[coach]

Originally Posted by CDN_Stalker

My PDI 300% put out close to 600fps w/.20g, so I guess this is a good example of the inconsistancies among PDI springs. I've had in my hands various 150% springs over the years, all have ranged from 6 3/8" long to 7" long, and of different thicknesses of wire. Of the 150%, the first I had put out 350fps pretty consistantly (as it should), but latter ones were anywhere between 350fps and 425fps, and different lengths. Add in they were a lot stiffer than the PDI 170% springs, and longer.................... hence the reason I push everyone away from PDI springs, is so hard to get a good one that performs as it should.

my laylax 150 spring in a APS2 sit me at 517 with .25's. so I agree, some springs are inconsistent or labeled/packaged incorrectly.

[CDN_Stalker]

Originally Posted by Amos

PDI springs are VERY good springs. They are hand-made in Japan.. Unfortunately, because they are hand made they are not very consistent spring to spring.

If you're using a PDI cylinder set you must use a 13mm spring otherwise the floating valve in your VC piston will get chewed up like crazy by the smaller diameter spring.

When my O-rings are new my VSR is able to do a 5 shot spread of +/- 0.5 FPS.. unfortunately my O-rings don't stay that new for very long ... I think I'm using a 130 or 140 spring with a 430mm 6.03 tight bore, and I'm getting roughly 450-460 FPS (Need my new O-rings damnit!)

Edit: With the PDI short stroke you'll lose roughly 30-50 FPS depending on your set-up.

I guess that points out further differences between PSS2 and PSS10 parts. Am sure the 300% and the Laylax springs I have are 13mm OD. And I don't like the 'handmade' part, fully explains why I've found different lengths and wire thicknesses over the years with just the 150% springs. Mind you, the first 150% I got did chrony within 2-3fps every time, is the most consistant I've seen.

[Steven]

PDI power adjusters? I cant seem to fine them, mind linking me?

I'm going to go with the PDI 220, and with my parts, wherever i sit at will be good. If it's that important to get to 450, i can always grab another spring.

[Treefingers]

Originally Posted by Steven

PDI power adjusters? I cant seem to fine them, mind linking me?

I'm going to go with the PDI 220, and with my parts, wherever i sit at will be good. If it's that important to get to 450, i can always grab another spring.

I'm at 440-450 with a PDI 210.