if i go with a new round my testing proceedure is as follows:
with my carry mags, i load 2 mags of the new JHP load.
i shoot one mag through the weapon while it is perfectly clean as i would be carrying it or keeping it around the house for SD purposes.
then i run 300-500rds of the cheapest, nastiest practice ammo i can through it to get it hot and nice and dirty.
then i shoot the second mag of JHPs through it. if it doesnt have a problem with JHPs clean and dirty than i trust it. i have also heard the "you need to run a case of your carry ammo through it to make sure it wont have a problem. forget that bull*****.
Where men are men, women are men, and teenagers and children are FBI agents.