We've had consistent results with all our GBBs and GBBRs. There is two different kinds of green gas we've been using, and both have had the same results over the past couple of years. Our WE open bolt M14 had to be run on propane or it would shoot over. There was a discussion thread on here somewhere about it. Propane is compressed 200 - 248 times depending on how it's being used. Auto propane, or torch, cooking, etc is compressed an average of 207 - 208 times it's gas form, and then ethyl mercaptan (or similar) is added to give it it's rotten egg smell. I took a course on it years back. I read claims on forums of green gas companies over compressing their propane, and then not putting it in a suitable bottle for legal transportation. Perhaps not all green gas manufacturers do this, but the few I've used do shoot consistently hotter than our propane. We often use Coleman, Mastercraft, etc. We just recently acquired more green gas since buying some new pistols. The manufacturer and supplier are the same since three years ago, and the results were the same. The gas composition is the same, but you can compress gases to different levels. For instance as a firefighter we often work with supplied air. We have 2500 lb, 3600 lb, 4500 lb, etc bottles of compressed oxygen; and a compressor that will accommodate whatever. I'm not claiming I know exactly how much they compress their gas, but I can tell you the results we've had.
WE'RE RECRUITING MORE AGE VERIFIERS FOR MORE REGIONS OF CANADA! INTERESTED? CHECK OUT OUR THREAD HERE!
BC & YUKON MASTER AV REPRESENTITIVE