I though I would share my results from My Caldwell Chronograph. I will post my underwood factory results so Intercooler and/or shadow can comment about how accurate my new toy is.
I thought these where pretty accurate, feed smoothly, and no noticeable smoke. These are the green powder coated lead bullets from Bayou.
Description: 11.5 gr aa9 200gr bayou RN
Notes 1:
Notes 2:
Temp: 78 °F
BP: 29.89 inHg
Shots:
12 1164
11 1135
10 1122
9 1135
8 1127
7 1140
6 1123
5 1150
4 1102
3 1103
2 1122
1 1147
Average: 1130.8 FPS
SD: 18.3 FPS
Min: 1102 FPS
Max: 1164 FPS
Spread: 62 FPS
Shot/sec: 0.1
True MV: 1131 FPS
These where marked 1300 fps on box.
Description: underwood tmj 180gr
Notes 1:
Notes 2:
Temp: 78 °F
BP: 29.89 inHg
Shots:
5 1322
4 1314
3 1362
2 1320
1 1349
Average: 1333.4 FPS
SD: 20.9 FPS
Min: 1314 FPS
Max: 1362 FPS
Spread: 48 FPS
Shot/sec: 0.2
True MV: 1334 FPS
All shot from EAA Witness Match with 4.75" barrel.
Looks like good numbers and very close SD's, gun and chronograph is working very well too.
Thanks for the report! 8)