I use Mec reloaders [ 600, 650, Grabber, and 9000H ] and have never had a problem seating primers in Remington hulls except for the 28ga hulls. In the 28 the plasic goes over the brass primer pocket and the Remington primer is a tad shorter with a radius on the end. It would fit the Remington hull but other primers wouldn't. A drill run up through the hull removing some plastic would fix the problem. But I never had a problem seating a primer in a 12 or 20ga Remington hull. At one time reloading for myself, wife, daughter, and grand daughter I must have used 30,000 Cheddite primers a year in Remington hulls with normal pressure to seat a primer. I wonder why you're having a problem ?

Last edited by Paul Harm; 11/01/21 10:45 AM.