I was looking at some Lake City ammunition on Gunbroker, and the description says that it was demilled for civilian use by replacing the primer. Why do they need to change primers? Does this make the ammo any less reliable or accurate?
When the military passes on ammunition to the civilian market they do so with the stipulation that the powder and primers are replaced. IIRC Talon is a company that does this or used to. They'll pull the bullets de-prime and replace both then re-sell it.
IF it is Talon that's done it.... it will be good reliable ammo. I have thousands of old 30-06 rounds done by them and never had a problem with 'em.
Yes military primers are tougher than civilian primers.