I use Gold Dots and emailed them asking about bullet set back and this is what they replied with. This is not recent, it was about a year ago.
What i emailed them " I use your 9mm 124gr +P ammo and was wondering after how many times of recycling the same bullet would setback become a problem? Thanks Bryan P."
Their response " Bryan, I would not recommend re-chambering the same cartridge more than four or five times. At that point the hoop strength of the case mouth can be compromised causing setback.
Austin @ CCI/Speer"
So me thinking that they are playing it safe with 4 to 5 i will rechammber mine 5 times and rechamber at 6 to shoot it as practice ammo. i put a little mark on mine with a black Sharpi to keep count. Some one on here told me thats what they do so i liked the idea and mark mine with a sharpi too.
