Originally Posted by m102404
the drop off with the 0.28 is quite severe (0.08 is about 40% of of .20g bbs weight). I'm not sure at this point (i.e. I haven't seen it myself) that the potential 60-70fps drop is worth the potential benefits.
I think you have judge it gun by gun. I do know that I run tightbores almost exclusively and I see .28 works very well in those. I've also tried the .28 in a stock TM M16A2 and was very surprised to see only about a 10 to 15 foot loss of distance - which to me is worth it for the definite on-target presence that is created by the .28 impact - people feel it even through gear.