Thanks Guys! I will defiantly try the heavier bb's when i get out of this lecture >.< (fluid mechanics ftw?).
Just as a side note to lurkingknight. the second day that I owned my first gun (ak 74m) I had to swap out the spring. I opened up the gear box not knowing what would happen and everything shot everywhere. I found all the parts and was able to reconstruct it. I have since opened up all my pistols and actually look forward to opening the m007 (the above mentioned sniper). I love to tinker and I know stuff gets lost :P. when i took apart my pistols, which I still have to post a fix for in the doc forum, i lost a small spring about 3 mm in length, luckily i found it yesterday while cleaning my room ... talk about lucky!