Based on having a co-worker with an LCR and seeing him qualify with a 90/100 (5 rounds out, my guess would be from the 25 yard line
). Why the POST doesn't have a Q course for a back up gun I'll never know. My co-worker carries the Speer 125gn GDHP in his. I can't remember what he shot to qualify with it. I know a couple of deputies who have them too and report similar performance.
Dry practice helps, just make sure it's DRY. It'll really help getting used to that DA pull.
* At 7 and 5 yards he was putting all of his rounds into a 3-4" area. He wouldn't tell anyone how he did with it the first time he shot it though. I'm thinking maybe he was wanting to hide something.