Thread: Best way to go about shooting multiple groups

Definitely wait 4-5 mins between grps to allow bbl to cool. When firing grps I just run 3 and don’t wait much between shots.
If you are starting at the very bottom of the load manual range then you will alomost certainly be wasting time and components. Load data provided is very conservative. Especially given your COAL is much longer than SAAMI. As others have stated best approach is to first run a ladder, single loads working up to book max. If you know how to read pressure signs then can usually go 1-2 gn above book max in magnum calibres. 0.2 or 0.3 gn increments is better than 0.5 for this step. Watch carefully for pressure and if your not sure get some one to join you who does and get them to show you what to look for. Once you’ve established safe max and based of your ladder data ( as @Mauser308 explained) you can pick a likely sweet spot to fine tune optimal load with groups.