Carlos,
The 155 & 180 gr. LTC's were shot in a S&W646 and chronographed as follows:
155 gr. LTC 3.4gr WST=80s fps SD10
3.6 gr WST=831fps SD8
180gr. LTC 3.4 gr. WST=778fps SD17
3.6gr WST=798fps SD8
The Star jacketed bullets were chronographed from a CZ-40B as follows:
155 gr. Satr FMJ
3.6gr WST = 756fps SD16
3.9gr WST=829fps SD9
165gr Star FMH
3.6 gr WST=757fsp SD11
3.9gr WST=815fps SD16
180gr Star FMJ
3.6gr WST=724fps SD9
3.9gr WST=778fps SD14
All the above date were with the Federal oprimer as I use them for plinking/IDPA/Steel loads in the SW646. They are supperbly accurate in both my S&W646, S&W610 and the CZ-40B. The 3.4 gr. LTC loads and jacketed loads also shoot very accurately in my PO16-40 with Wolf reduced weight recoil springs.
Tony