Hey all! I have been running my kwa DMR with .30 Valken for a while now, and it's okay, but not as accurate as I would prefer. I tried Javelin BB's, and quite frankly, they sucked. Results: - Left a coating of green residue inside barrel (they are green) even after a thorough washing. - Terrible, TERRIBLE, accuracy. I'm talking a 4 foot spread (gun was stationary) at 200 feet. NOTE: My gun handled the .36's fine in terms of hop, It could get an optimal trajectory, so .36's are fine for recommendation, so long as they are good. On to the gun: - Running a Madbull M130 (shooting 400 with .25's, field limit is 450 with .25's) - Madbull "Steel Bull V2" Inner Barrel, 509 mm. Accuracy is okay, could be issues with BB's though. (I clean it regularly) - Modify Baton Ryusoku Bucking (Flat Hop) - Prommy Flat Hop Tensioner. - Full Cylinder Questions: - What BB's should I run? I'd prefer a heavy BB (.30+) that would maximize range and accuracy in my gun. - Should I change my barrel for a Prommy 6.03/455 mm? Please Help!!! Thanks!