but a timeless topic......

I switch between my .223 and a 17 hmr, when the .223 barrel heats up. I can go for about 10 shots, two 5 shot groups with a bit of time in between to reload the clip.
I always set up enough targets, maybe different for each gun. You can shoot .17 hmr's for a long time before you get any real heat going. Especially with a bull barrel.
What's your technique ?