What's everyone's opinion on starting a 143 ELD-X at 2500fps.
For some data points I get 2608fps with 42.2gr of H4350 from a 19" tikka barrel in mild weather. Today I loaded one at 41 and 42 and 42.5 gr with CCI and Win primers and left them in the sun for a bit since it's warm (most of my reloading is in winter). The magazine temp was 100 and the loaded rounds were about 90 based on the IR thermometer.
With the CCI At 41gr I got 2535fps, I didn't pay attention to bolt lift but it may have been a hair heavy, no ejector marks, at 42 gr I got 2585fps but a mild ejector mark and a heavier bolt lift. I didn't shoot 42.5gr.
With win primers at 41gr I got 2576fps and I had a solid ejector mark and heavy bolt lift. I didn't shoot 42 or 42.5gr.
I have 400 cases to prime and load before an upcoming move. Originally I'd planned to load at 42gr but moving to TX where temps are regularly 100+ I'm thinking that'd probably be an unsafe load.
Would you guys load some summer rounds at 40.5 or 41 and some hunting rounds at 42? The slight wind benefit would be nice but that seems overly complicated. I can load them all at 41 but starting in the low 2500s just seems slow?
L to R - Win 41gr - CCI 41gr - CCI 42gr