Here's the data on a couple of my 147gr loads for the 929: NOTE - Starline brass
9mm-147-Berry_AutoComp-3.8147gr Berry's plated RN
3.8gr AutoComp
Chrono data:
Avg: 848.8
Hi/Lo: 836.9 - 874.8
SD: 12.2%
ES: 37.9
PF: 124,709
9mm-147-Berry_AutoComp-3.9147gr Berry's plated RN
3.9gr AutoComp
Chrono data:
Avg: 856.7
Hi/Lo: 840.2 - 876.6
SD: 12.3%
ES: 36.4
PF: 125,935
moderate effort to extract
9mm-147-Berry_W231-0.135/3.5147gr Berry's plated RN
3.5gr W231
Chrono data:
Avg: 859.9
Hi/Lo: 810.9 - 888.7
SD: 23.8%
ES: 77.8
PF: 126,400
ejected easily
9mm-147-Berry_W231-0.140/3.63
147gr Berry's plated RN
3.5gr W231
Chrono data:
Avg: 891.5Hi/Lo: 864.1 b- 916.9
SD: 20.5%
MAD: %
ES: 52.8
PF: 131,047
No record on how easily it ejected