I've used RL22 more than RL19, primarily in a 25-06. It can get dam cold in Alberta, right now it is -30. A boatload of dead deer are testimony to how much any temperature sensitivity mattered. I never knew there were any temperature sensitivity issues until read about it several years later.

Any misses, I blamed on bad range or wind estimation or poor shooting.

I'm now using RL17 in my 300WSM. From November in Alberta to South Africa, it has served me well.