How is your barrel/dart fit? Extremely loose? Loose? Quasi-loose? Air guns are supposed to be loose, but not too loose. 9/16 in my AT3k results in shit-poor ranges for an AT3k; 17/32 gets me the ranges that are usually reported.
~ompa
I use CPVC, and the dart fit is kinda tight. I know air gun seals are supposed to be loose, but everyone I see used CPVC, and they got great ranges. So, I assumed this was the only way it was done. Are your darts loose in 17/32 brass? My darts are tight in 17/32.