With regards to my previous chrono session (9mm major Chrono results with Hodgdon CFE Pistol). Here’s an update. I went to chrono the rounds I made using CFE Pistol at 6.8gr of powder using a different type of Chronograph. The first session was using a Chrony but this session I was using a Competition Electronics chrono so the results are a little unexpected. I should really stick to just using one Chrono.
As you can see i’m using my typical 8.1gr HS-6 as a calibration round. this time the results were really low at average 1323fps, that puts me at 164pf which is under the power factor floor. The deviation is huge too which could mean that the rounds were loaded inconsistently.
CFE pistol on the other hand, metered VERY well. the SD is only 6 and the 3 averages of 5 rounds is 1363, 1357 and 1351. Super consistent. I’m liking this powder already.
The average is 1357fps and with a 124gr projectile, that puts me at 168pf.
I trust the Competition Electronics chrono more than the Chrony so I’ll bump it up to 7grs of CFE Pistol hoping to get around 170-171pf. The old result using the Chrony at 7grs gets me to 172.5. The Chrony is a little “exaggerated” in terms of fps so 7.0gr should put be at 170pf with the Competition Electronics chrono.
7.0 it is!