2020 Colt Python 4.2”
158 grain xtp
Starline .357 magnum brass
Federal 100 primers
Goal: Mildish SD type load.
Most accurate charges from test ladders with 4 different powders:
6.6 W-231 Mildest recoil
6.6 CFE-Pistol Most accurate, lowest velocity
7.9 N340 best velocity/perceived recoil balance + clean, low flash
11.9 N105 best performance. Manageable recoil - not full-house but not mild either
Chrono results attached.
158 grain xtp
Starline .357 magnum brass
Federal 100 primers
Goal: Mildish SD type load.
Most accurate charges from test ladders with 4 different powders:
6.6 W-231 Mildest recoil
6.6 CFE-Pistol Most accurate, lowest velocity
7.9 N340 best velocity/perceived recoil balance + clean, low flash
11.9 N105 best performance. Manageable recoil - not full-house but not mild either
Chrono results attached.
Attachments
Last edited:
