Javaman

I would recommend against the Deltas. I've had 2 of them and they both had the same problems.... Low velocities and 12 gram seal leaks. The design of the quick release is pretty lousy. You have to clamp it tight enough not to leak, but not so tight to where the clamp doesn't actuate. It's very easy to shred the seal for the 12 grams since it uses mini Orings to seal around the outside edge of 12gram. Face seals are much more reliable. The O-rings easily freeze to the 12gram and rip when changing cartridges after rapid firing. Apart from the nonstandard size they are annoying to change out. If you do get one make sure not to use the copperhead 12grams.... They have a gap near the nipple that the Oring have to fight against causing most of them to leak (messing up the Oring!) Use ones without a gap to be safe.

The low velocity has me befuddled. I've tried many different spring combinations (fortunatelly the valve and main spring along with cupseal are Spyder compatible) but couldn't get the velocity over 240fps even with the strongest/weak combo. I think that too much air is blowing past the valvepin notch which causes the gun to recock prematurely, venting some of the air headed to the ball out the feed port. I hadn't gotten around to building up some material on the notch but I'm pretty sure it would help the velocity.

Keep in mind that all the PTs and the Delta are basically the same, with the Delta considered by some to be a better gun. I've heard that the ball detents for the PTs tend to wear out very quickly, but I hadn't seen it firsthand yet. I can't really speak for the Zueses since I've never seen one in person, but I've heard that velocity isn't a problem with those but they use non Spyder compatible springs. (many people have said you have to turn them down out of the box!)

If you do decide to pick up a Delta or PT it's worth the time to drill a PB sized hole about 1/2-1 inch behind the front site. Normally there are a lot of time consuming steps involved with reloading, 1/2 of which (dealing with the annoying feed plug) can be skipped by dumping the PBs into the front top of the feed tube after drilling a hole. Make sure to drill it close to the cocked spring so that you can fill all 10 rounds in!

That said, I still use my Delta, but as a backup gun for my PGP. I close in with the pump action PGP and switch to the Delta if there are more targets then I can handle. It works fairly well at a close range (accuracy and distance sucks)

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