Unis Ginex Primer Small Pistol Primers

[Cross Eyed Cowboy]

I have a chance to buy a number of bricks of Unis Ginex Primer 4,5/3-P1 Small Pistol primers from an individual who is selling off his reloading equipment and supplies. My understanding is he bought them just for hoarding and never tried them in his reloads.

Any advice on the quality of these primers for reloading 9mm?

My understanding is they may be tight fit into the primer pockets depending on the condition of the brass or how clean the the pockets are.

I'm just starting out with reloading on a Lee single stage and I was thinking if they are going to be an issue I'd just as soon buy a brand that's more mainstream and less troublesome.