With annealing brass my way of thinking , I would do more harm then good .
Last season I got 25 reloads out of the same 30 HMR brand cases , when one out of the lot showed a minor crack at the case mouth I dumped all 30 . At that time I was tweaking my reloads during this period . This season I'm using 3 sets of 30 each set a different brand , HSM , FC and ADI , all three are on the thick side .
I'm using the same load , no tweaking and I finding my groups are accurate and consistent now that I'm concentrating on only my form . Different weather conditions linked with all the other variables in reloading , annealing brass would throw something else into the mix .Maybe brass has a life just like a rifle barrel , after a barrel is shot out you're never going to get that tight group .
This season alternating the 3 different brass brands , I'm testing if one brand works better then the other . The stripped bolt works great for me , I do it every new lot of bullets .