My experience using the Aquila and Servicios Aventuras small pistol primers did not go well. Hand priming no problem. The issue was using them on a Hornady Progressive press. The Aguila do not seat properly, too high. The other ones seem to not operate the primer slide correctly. Too much bother to ever buy again for an AP press. Now I know why there available. Just my two cents. Too make sure it wasn't the equipment setup I ran 100 CCI through it no problem. Anyone else run into problems?
