Looking at this past year the bulk of losses have been 0.25-0.5% of my portfolio balance. The bulk of my winners have been falling between 0.25-1%. I have a few very small winners, <0.1% and a couple 'big' winners (>1%). You don't want to know my win rate, it's unbelievably high so I won't even mention it. The RR I aim for is at least 1:2 (1 unit risked for 2 units rewarded) but my actual expectancy has been much higher than that, primarily due to my high win rate.
If you are familiar with Peter Brandt, I do something similar to him. I look at the weekly price action, then daily, and then usually take my entries anywhere from hourly to daily TF.