Primer pockets

[Richard Flanders]

I reload Rio hulls and you definitely have to use the larger European primers as US primers just about fall out. The most interesting primer pocket issue I've encountered was trying to use Winchester primers in Rem STS hulls. When they form the brass and plastic together it creates a sort of diaphragm of plastic at the end of the primer hole. The Remington primers have a rounded nose that allows them to fit just fine; Winchesters with their squarish nose get pushed back out a bit. Took a while to figure that one out. You have to take a reamer and remove the offending plastic from each hull if you want to use Win primers.