The Federal primers are created from softer metals and so they use a more sensitive priming combination than everyone else. (That's why the race gun shooters rely on them, their guns have exceptionally light-weight springs which lead to light primer strikes.) Add to quote Only show this person #1 · https://210mfederalprimers39494.howeweb.com/32439500/not-known-facts-about-federal-210-primers-100-count