Greetings @Jhon, @shooternz,
I had read about velocity decreasing with increasing powder charge before but it is nice to hear from someone who has actually tested it. From what I remember pressure still increased with the charge so you seem to to have found your load @Jhon. Generally I load up to a max velocity rather than a max charge so for me my 35P chronograph is essential. I use a 4 foot screen spacing which improves accuracy and the proof channel (a separate reading using a second stop screen) alerts me to the very occaisional dud reading. This system is very useful for loading for older cartridges where load data is varied to say the least. No need to go doawn any rabbit holes for this one. As far as the longer range stuff you need to verify your longer range POI by actually shooting at that range. Preferably zero at 200 metres as well.
Regards Grandpamac.
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