This is how I roll for any rifle in any caliber for non subsonic ammo.
1 Load up from minimum data or if there is no data for the chambering use some common sense from similar chamberings data....-08 06 size cases 1 grain steps are good,223 or smaller 1 grain steps are way to big go 0.2gr.
Seated at max mag length or just touching the lands(for a hunting rifle) load one shot from min to a good 3-4gr over max....fire each wearing safety glasses of course taking particular note of recoil and force required to lift the bolt and retract the bolt and any stamping/shaving of brass from the case head.
The point at which you find very stiff bolt lift/stamping on the case head being shaved off is over maximum! dont fire anymore !
Back off a grain at least from here(in a 08/06 sized case) and thats max.
Now you know where maximum is and it only cost you 4-7 shots and you can load a few at various charges around and under max to test for accuracy.
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