Ended up going up to max load with still no pressure signs. Tried seating out to fit the mag box but not enough in the neck so tried 68,69 and 71mm.
This was the result with 73.5gr of ADi 2225 at 68mm. Happy enough. Both groups were loaded on different days. Shot on different days. Rounds fired pretty quickly, suppressor to hot to touch. So will try 1 shot and cool then repeat next time I'm out. Not to bad for a standard Rem 700.
Cheers for the help and advice.
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