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| Differences Between Typhoon and Stroker
Most Sheridan pumps have 10" barrels, newer models like the P-68AT have 13" barrels and they all have barrel IDs of about .687 to .688. Typhoon standard, the barrel is 11", 12" if vented. ID is .690 to .692 initial size and larger in the center section of the bore, up to .698. The cocking stroke on both the Typhoon and the Stroker are the same, 1" in length. They are not at all the same gun as far as the firing system goes but both utilize the same pneumatic automation components . Let me put it this way. If I could have gotten the performance that I wanted from the standrd Sheridan valve system and the way it is arranged inside the gun, I would not have needed to make a new gun at all. Keep in mind that a Stroker is little more than a Sheridan/PMI standard pistol that we install our automation system into. During the conversion process, we also work on the valving, but there is only so much you can do in the space available. The performance characteristics of the Typhoon are derived from a gun that I built for myself back in the old days when tournament play was 12 gram pumps and 15 man teams. Nelson based guns were a favorite; primarily because they could be made so much more efficient than the Sheridan based guns for a plethora of reasons. A stock Sheridan could only be expected to get about 15 useable shots out of a 12 gram if that. I could work over the valve and barrel and get them up to about 25 shots per cartridge, under good conditions but that still wasn't near good enough for me. Some serious thought as to what it would take to keep leading the arms race, a dogged determination to have the most effective gun on the field, some seriously dedicated R&D, a little trial and error and plenty of cussing, led me to the conclusion that is simply could not come to be with a normal Sheridan valve system, no matter what or how much I did to it. I also noticed that the more efficient that I got them, the more consistent and the more accurate they got. The question that I was driven to find the answer to was and still is this: "What is it going to take to get there?" What it took was designing/engineering a balanced valve system that would maximize efficiency and maintain consistancy throughout the constantly changing pressure environment of CO2. The problem with the new valve was that it wouldn't fit into a Sheridan gun body, so I had to build a gun to put it in and a barrel that would allow it to reachit's potential. I named the gun Paladin and I could easily expect 30-35 effective shots or more from a 12 gram cartridge even under the worst conditions. As a matter of fact, during a test/demonstration held at the offices of Action Pursuit Games magazine, for then editor Brian Imada, the gun was able to fire 59 balls from a single 12 gram in just over 15 minutes, indoors at 74 degrees. The 59th ball came out at 161 fps, and there wasn't enough gas left in the cartridge to get the 60th ball out the end of the barrel. This is the gun that the Typhoon is based on. As compared to the Sheridan setup, the valve chamber is much larger, a lighter hammer travels almost three times as far before striking the valve, there is no preload force on the valve when the hammer is forward and each burst of gas is allowed to reach it's full potential. They are nowhere near the same. You decide which is best. GLENN PALMER aka PALADIN pog site design and contents Copyright pog members |