I have a reasonably large battery setup for my maxtoch mounted on my .22, so just leave it on all the time. Full power for scoping out all of the rabbits at a distance, then it gets switched to a lower setting for walking around and shooting.
This allows me to plan the shoot, with the wind in my face, and cover to stalk up on the rabbits.
Most shots end up being 25M or less, so can be done standing.
The maxtoch light allows me to illuminate up to 1km away at full power, so I can clearly identify when there is other stock around, or buildings etc.
Because I shoot around orchards and market gardens with lots of equipment around, ricochets are very undesirable. I find that the CCI Segmented subs limit the ricochets a lot.